diameter class 中文意思是什麼

diameter class 解釋
檢尺徑
  • diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
  • class : n 1 階級;社會等級。2 學級；班級，年級，級，班；組；（有組織的）講習班；〈美國〉同年畢業班；【軍事...
  1. The method of modified simplex was applied to optimize the models, and the fitting results show that liu - logistic model was more suitable than logistic model to the actual growth trend of form. taxus chinensis var. mairei population, and the highest growth rate of basal area was the tenth age class, namely the phase when breast diameter was 68 ~ 76 cm

    以胸高斷面積代替種群生物量，分別採用logistic常規模型及劉金福提出的logistic改進模型對南方紅豆杉種群的增長動態進行研究，運用改進單純形法對模型進行優化，擬合結果表明改進模型比logistic常規模型更符合南方紅豆杉種群的增長趨勢，南方紅豆杉種群的最大增長速度出現在第10齡級，即胸徑為68 76cm時期。
  2. Through the experimental research, we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam, however, if use elasticized capacity to solve blending technological problem. adjust the breed of fiber silk, extend its diameter, its paving capacity is still worth exploring, asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity, small gap rate. good water - resistance capacity, good hot - stability and simple construction technology. therefore. pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue. and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting. pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level, although the cost of building is higher than paving togongbu in the middle, the construction technology, crazing - resistance and water - resistance are better than togongbu, not only could reduce greatly the reflex of half - rigidity grass - roots unit material, long then the use lifespan of pavement, but also it is possible to reduce suitably the thickness of asphalt mixture layer, though the cast of building in the early days becomes more, in the long - term opinion, it have fully important technological and economical significance

    通過試驗研究認為：玻璃纖維瀝青碎石的技術性能不如瀝青碎石好，但路用彈性性能較好，如能解決拌和工藝問題，調整纖維絲的品種，增大其直徑，其路用性能仍值得探討，瀝青橡膠碎石結構層具有變形性能和抗裂性能良好，空隙率小，防水性能好，熱穩定性較好，施工工藝簡單的特點，因此，瀝青橡膠碎石是二級及二級以下公路因疲勞而開裂的瀝青路面的良好罩面材料，也是防止半剛性基層收縮裂縫反射的良好結構措施，在瀝青類路面面層和半剛性基層之間夾鋪瀝青橡膠碎石薄層，雖然造價比夾鋪土工布高，但其施工工藝，抗裂性能和防水性能均優于土工布，不僅可以大大減少半剛性基層材料的反射裂縫，延長路面使用壽命，而且可能適當減薄瀝青混合料面層的厚度，雖然初期造價有所增加，從長遠來看，具有十分重要的技術和經濟意義。
  3. As a specialist maker of brass piping joints, we provide a lineup of top - class small - diameter connection products recognized as among the very best in japan

    作為生產配管介面及真空管的專業廠家，我們的產品在小直徑配管連接方面達到了日本的最高級別。
  4. Detail specification for 62. 5 - um core diameter 125 - um cladding diameter class 1a graded - index multimode optical fibers

    62 . 5um芯直徑125um覆層直徑1a級分級指數多模光纖的詳細規范
  5. Detail specification for 50 - um core diameter 125 - um cladding diameter class ia graded - index multimode optical fibers

    芯直徑為50 - um包覆直徑為125 - um的ia類陡度折射率多模光纖的詳細規范
  6. Detail specification for 62. 5um core diameter 125 - um cladding diameter class 1a multimore graded - index optical waveguide fibers

    62 . 5um連芯直徑125um連皮直徑1a級多元分級指數光導纖維的詳細規范
  7. This article uses fixation swatch founding for second - class investigation to obtain character of 207 sample trees, by which mathematics model of ground diameter volume table of chinese fir were deduced by regressing and imitating with five of equations respectively, and used unitary and binary volume tables of timber respectively to reckon an unitary ground diameter volume table, then compared the two ground diameter volume tables, so that a ground diameter volume table of chinese fir in yanping district was compilated to satisfy essentially the precision demand of forestry production, and to serve forestry production

    摘要利用二類調查布設的固定樣地，收集207株樣木調查資料，分別採用5個方程進行回歸擬合，選出杉木人工林地徑材積表的方程模型，利用一元材積表和二元材積表導算編制一元地徑材積表，並進行比較，結果表明二元材積表導算地徑材積表的方法精度較高，基本滿足林業生產所需精度要求，可以提供林業生產服務。
  8. Wafangdian electric bearing production co., ltd. boasts sophisticated bearing processing equipments, the powerful technical force, excellent production equipments, advanced technological level and complete detection means and is capable of independently undertaking the manufacture of deep grove ball bearing, self - aligning ball bearing, cylindrical roller bearing, ? self - aligning roller bearing, angular - contact ball bearing, tapered roller bearing, thrust ball bearing and thrust roller bearing as well as non - standard bearings and revolving supporting bearing, with the production scope ranging from the internal diameter of 50mm to the external one 3000mm and the precision class ranging from p0p5

    瓦房店電力軸承製造有限公司具有先進的軸承加工設備技術力量雄厚生產設備精良工藝水平先進檢測手段全，能獨立承製深溝球軸承調心球軸承圓柱滾子軸承調心滾子軸承角接觸球軸承圓錐滾子軸承推力球軸承推力滾子軸承及非標準軸承和回轉支承軸承。
  9. Aircraft bolts and nuts - nuts, hexagonal, slotted castellated, normal height, iso m or iso mj threads, 4h5h or 5h tolerance class according to diameter

    飛機用螺栓和螺母. iso m或iso mj螺紋直徑公差等級4h5h或5h標準高度帶槽帶缺口普通六角螺母
  10. Aircraft bolts and nuts - nuts, hexagonal, slotted castellated, reduced height, iso m or iso mj threads, 4h5h or 5h tolerance class according to diameter

    飛機用螺栓和螺母. iso m或iso mj螺紋直徑公差等級h h或h .帶槽帶缺口減少高度帶鎖緊孔左旋普通六角螺母
  11. Aircraft bolts and nuts - nuts, hexagonal, plain, reduced height, reduced across flats, with locking holes, iso m or iso mj threads, 4h5h or 5h tolerance class according to diameter

    飛機用螺栓和螺母. iso m或iso mj螺紋直徑公差等級4h5h或5h減少高度減少高度帶鎖緊孔左旋普通六角螺母
  12. Nuts, hexagonal, plain, reduced height, normal across flats, iso m or iso mj threads 4h5h or 5h tolerance class according to diameter

    Iso m或iso mj螺紋直徑4h5h或5h級公差減少高度標稱十字槽平頭六角頭普通螺母
  13. Which located at the foot of wutai mountain, china famous buddhism holy land. with rich source of coal, electricity, and iron, dingxiang is the famous forging county in china, being in superior geography location and good highway and railroad transportation, it is a specialized factory for producing forging steel flanges and forging parts of pressure vessel. it has been listed one of the first class supplier by china petoleum group and china petrochemistry group. having the capacity of buying raw material, forging, heat treatment, maching, quality test, mechanical stamp, surface galvanized, packing, shipping, it can produce 4000 metric tons of flanges and forgings in accordance with the standard of ansi, bs, din, gb, jis etc. the diameter of forging is form 15mm to 3000mm

    山西眾立法蘭有限公司位於佛教聖地五臺山腳下「中國鍛造之鄉」定襄縣，是生產鍛鋼法蘭和壓力容器鍛件的專業廠家，是中石油中石化一級供應網路成員。主要產品有單重小於2500kg公稱直徑dn15 - dn3000mm之間的美標英標德標國標等各國標準和非標法蘭盤及鍛件，年生產能力4000餘噸。
  14. Ganfa has over 50 years experience of designing and manufacturing and has many items of patent techninque. the synchronous generators and permanent magnet generators which are manufactured with advanced technology and excellent machining equipement, will be able to meet the requirement of different technical condition which matched with various type turbines. ganfa has manufactured the generators of 0. 1 to 20mw in capacity which have been put into operation at present and owns the capability to manufacture the following generators : the capacity per unit up to 180mw, the stator outer diameter of generator up to 9, 000mm, the speed of vertical type generator up to 750r min, and thespeed of horizontal type generator up to 1, 500r min, both the b - grade and f - grade insulation class, the terminal voltage can up to 13. 8kv. ganfa manufactured 34, 500kw water turbine generator sets for the donghewan power station, yongchang, gansu, china which is located in 2. 868. 5m height above sea level, and has successfully solved the difficult problems such as plateau corona - shielding. ganfa is equipped with the generator test station and insulation material laboratory which are advanced test facilites and testing means to make each item electrical performance of products meet designing requirements from purchasing to delivering

    公司具有50年的設計製造經驗，擁有多項專利技術，生產的同步發電機永磁機技術工藝先進，製造精良，能滿足與各式水輪機配套的不同技術條件要求。目前公司已製造投產的發電機容量范圍為0 . 120mw ，具備生產單擊容量50mw的能力，發電機機座號最大可達9000mm ，立式機最高轉速750r min ，臥式機最高轉速達1500r min ，絕緣等級有b級和f級，圈式線圈最高電壓達13 . 8kv ，公司製造的甘肅永昌東河水電站34500kw水輪發電機組，海拔為2868 . 5m ，成功解決了高原防暈等難題。公司擁有電機試驗站絕緣材料試驗室等先進的實驗室設施和測試手段，使產品從原材料進產，到成品出產的各項電器性能測試均能滿足設計要求。
  15. Aircraft bolts and nuts - nuts, hexagonal, palin, reduced height, normal across flats, with locking holes, iso m or iso mj threads, 4h5h or 5h tolerance class according to diameter

    航空用螺栓和螺母. iso m或iso mj螺紋直徑4h5h或5h級公差帶鎖緊孔減少高度標稱十字槽平六角頭普通螺母
  16. It is real driving wheel of the germany 01 class. the diameter is 2, 000 mm

    這是德國01型大型蒸汽機車直徑2米的大動輪實物。
  17. Aircraft bolts and nuts - nuts, hexagonal, plain, reduced height, reduced across flats, iso m or iso mj threads, 4h5h or 5h tolerance class according to diameter

    飛機用螺栓和螺母. iso m或iso mj螺紋直徑公差等級4h5h或5h減少高度減少對邊普通六角螺母
  18. Aircraft bolts and nuts - nuts, hexagonal, plain, reduced height, reduced across flats, left - hand iso m or iso mj threads, 4h5h or 5h tolerance class according to diameter

    飛機用螺栓和螺母. iso m或iso mj螺紋直徑公差等級4h5h或5h減少高度左旋普通六角螺母
  19. Aircraft bolts and nuts - nuts, hexagonal, plain, reduced height, reduced across flats, with locking holes, left - hand iso m or iso mj threads, 4h5h or 5h tolerance class according to diameter

    飛機用螺栓和螺母. iso m或iso mj螺紋直徑公差等級4h5h或5h減少高度減少對邊帶鎖緊孔左旋普通六角螺母
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