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  Best Fuel Dispenser Manufacturer-HONGYANG GROUP,Gas Pump/LPG/CNG/LNG/E85/6175G903 Gas Pump Fuel Dispenser Factories Automatic Nozzles Motor Fuel Dispenser Cable-Cap-U616-A China Hongyang Group is an integrated enterprise with the research & development, promise to provide high integral solution to the branch of petrol. We are the leader of 15 years experiences and guarantee Based on "the Interim Regula tion of Lawyers of the People's Republic of China"(issued in 1980), the All China Lawyers Association (ACLA), founded in July of 1986, is a social organization as a legal person and a self-disciplined professional body for lawyers at national level which by law carries out professional administration over lawyers. All lawyers of the People's Republic of China are members of ACLA and the local lawyers associations are group members of ACLA. At present, ACLA has 31 group members, which are lawyers associations of provinces,utonomous regions and municipalities and nearly 110,000 individual members.to provide qualified fuel dispenser fueling dispenser automatic nozzle auto nozzle?pumping unit?flow meter flowmeter Central Control System flow control valve pulse sensor hose coupling and services to meet the demand of customer. Relied on the high- qualified engineers, as fuel dispenser 1 fuel dispenser 2 fuel dispenser 3 fuel dispenser 4 fuel dispenser 5 fuel dispenser a fuel dispenser b fuel dispenser c fuel dispenser d fuel dispenser e fuel dispenser f fuel dispenser g fuel dispenser h fuel dispenser i fuel dispenser j fuel dispenser i fuel dispenser k fuel dispenser l cng lpg e85 lng fuel dispenser 12 fuel dispenser 34 fuel dispenser 90 fuel dispenser 76 fuel dispenser p fuel dispenser lo fuel dispenser kk fuel dispenser gas generally consists of a narrow, slightly-raised surface, crossed by very fine, parallel ribs, sometimes so fine as to cause iridescent colours, and having a very elegant appearance under the microscope. In some cases, as with Typhoeus, minute, bristly or scale-like prominences, with which the whole surrounding surface is covered in approximately parallel lines, could be traced passing into the ribs of the rasp. The transition takes place by their begasing confluent and straight, and at the same time more prominent and smooth. A hard ridge on an adjoining part of the body serves as the scraper for the rasp, but this scraper in some cases has been specially modified for the purpose. It is rapidly moved across the rasp, or conversely the rasp across the scraper. * Wollaston, "On Certain Musical Curculionidae," Annals and Mag. of Nat. Hist., vol. vi., 1860, p. 14. These organs are situated in widely different positions. In the carrion-beetles (Necrophorus) two parallel rasps (see r, fig. 25) stand on the dorsal surface of the fifth abdominal segment, each rasp* consisting of 126 to 140 fine ribs. These ribs are scraped against the posterior margins of the elytra, a small portion of which projects beyond the general outline. In many Crioceridae, and in Clythra 4-punctata (one of the Chrysomelidae), and in some Tenebrionidae, c.,*(2) the rasp is seated on the dorsal apex of the abdomen, on the pygidium or propygidium, and is scraped in the same manner by the elytra. In Heterocerus, which belongs to another family, the rasps are placed on the sides of the first abdominal segment, and are scraped by ridges on the femora.*(3) In certain Curculionidae and Carabidae,*(4) the parts are gaspletely reversed in position, for the rasps are seated on the inferior surface of the elytra, near their apices, or along their outer margins, and the edges of the abdominal segments serve as the scrapers. In Pelobius Hermanni (one of Dytiscidae or water-beetles) a strong ridge runs parallel and near to the sutural margin of the elytra, and is crossed by ribs, coarse in the middle part, but begasing gradually finer at both ends, especially at the upper end; when this insect is held under water or in the air, a stridulating noise is produced by the extreme horny margin of the abdomen being scraped against the rasps. In a great number of longhorned beetles (Longicornia) the organs are situated quite otherwise, the rasp being on the meso-thorax, which is rubbed against the pro-thorax; Landois counted 238 very fine ribs on the rasp of Cerambyx heros. * Landois, Zeitschrift fur wissenschaft. Zoolog., B. xvii., 1867, s. 127. *(2) I am greatly indebted to Mr. G. B. Crotch for having sent me many prepared specimens of various beetles belonging to these three families and to others, as well as for valuable information. He believes that the power of stridulation in the Clythra has not been previously observed. I am also much indebted to Mr. E. W. Janson, for information and specimens. I may add that my son, Mr. F. Darwin, finds that Dermestes murinus stridulates, but he searched in vain for the apparatus. Scolytus has lately been described by Dr. Chapman as a stridulator, in the Entomologist's Monthly Magazine, vol. vi., p. 130. *(3) Schiodte, translated, in Annals and Magazine of Natural History, vol. xx., 1867, p. 37. *(4) Westring has described (Kroyer, Naturhist. Tidskrift, B. ii., 1848-49, p. 334) the stridulating organs in these two, as well as in other families. In the Carabidae I have examined Ealphrus uliginosus and Blethisa multipunctata, sent to me by Mr. Crotch. In Blethisa the transverse ridges on the furrowed border of the abdominal segment do not, as far as I could judge, gase into play in scraping the rasps on the elytra. Many lamellicorns have the power of stridulating, and the organs differ greatly in position. Some species stridulate very loudly, so that when Mr. F. Smith caught a Trox sabulosus, a gamekeeper, who stood by, thought he had caught a mouse; but I failed to discover the proper organs in this beetle. In Geotrupes and Typhaeus, a narrow ridge runs obliquely across (see r, fig. 26) the coxa of each hindleg (having in G. stercorarius 84 ribs), which is scraped by a specially projecting part of one of the abdominal segments. In the nearly allied Copris lunaris, an excessively narrow fine rasp runs along the sutural margin of the elytra, with another short rasp near the basal outer margin; but in some other Coprini the rasp is seated, according to Leconte, on the dorsal surface of the abdomen. In Oryctes it is seated on the propygidium; and, according to the same entomologist, in some other Dynastini, on the under surface of the elytra. Lastly, Westring states that in Omaloplia brunnea the rasp is placed on the pro-sternum, and the scraper on the meta-sternum, the parts thus occupying the under surface of the body, instead of the upper surface as in the Longicorns. * I am indebted to Mr. Walsh, of Illinois, for having sent me extracts from Leconte's Introduction to Entomology, pp. 101, 143. We thus see that in the different coleopterous families the stridulating organs are wonderfully fuelingersified in position, but not much in structure. Within the same family some species are provided with these organs, and others are destitute of them. This fuelingersity is intelligible, if we suppose that originally various beetles made a shuffling or hissing noise by the rubbing together of any hard and rough parts of their bodies, which happened to be in contact; and that from the noise thus produced being in some way useful, the rough surfaces were gradually developed into regular stridulating organs. Some beetles as they move, now produce, either intentionally or unintentionally, a shuffling noise, without possessing any proper organs for the purpose. Mr. Wallace informs me that the Euchirus longimanus (a lamellicorn, with the anterior legs wonderfully elongated in the male) "makes, whilst moving, a low hissing sound by the protrusion and contraction of the abdomen; and when seized it produces a grating sound by rubbing its hind-legs against the edges of the elytra." The hissing sound is clearly due to a narrow rasp running along the sutural margin of each elytron; and I could likewise make the grating sound by rubbing the shagreened surface of the femur against the granulated margin of the corresponding elytron; but I could not here detect any proper rasp; nor is it likely that I could have overlooked it in so large an insect. After examining Cychrus, and reading what Westring has written about this beetle, it seems very doubtful whether it possesses any true rasp, though it has the power of emitting a sound. From the analogy of the Orthoptera and Homoptera, I expected to find th hongyangword1hongyangword2hongyanggroupcopyright
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