輕氫 的英文怎麼說

中文拼音 [qīngqīng]
輕氫 英文
light hydrogen
  • : Ⅰ形容詞1 (重量小; 比重小) light 2 (數量少; 程度淺) small in number degree etc : 年紀很輕 be v...
  • : 名詞[化學] (氣體元素) hydrogen (h)
  1. Cleanup corrosive substance in pipe such as internal water, clean oil, methane hydrate, ferric oxide, carbide dust, carbon bisulfide, hydrosulphurice acide, etc. ; reduce corrosion damages to inner wall of pipeline caused by corrosive substance ; clarify pipe route again ; inspect pipe deformation ; check perfectness ratio of valves along pipe ; decrease working backpressure

    清除管線內部積水、質油、甲烷水合物、氧化鐵、碳化物粉塵、二硫化碳、硫酸等腐蝕性物質;降低腐蝕性物質對管道內壁的腐蝕損傷;重新明確管線走向;檢測管線變形;檢查沿線閥門完好率;減小工作回壓。
  2. Hydrocarbon oil - - including motor spirit, aircraft spirit, kerosene and light diesel oil

    油包括車用汽油、飛機用汽油、火水及質柴油;
  3. Is called protium or light hydrogen,

    稱為氕或輕氫
  4. 4. engineering dhqase ( arod ) - deficient e. coli mutant with a second copy of the arob gene gene targeting technique was used to disrupt the arod gene in e. coli chromosome. the mutant 31bk was engineered, in which homologous recombination of the arobkanr gene cassette into the arod locus ( arod : : arobkanr ) of the e. coli strain atcc31884 genome utilized the helper plasmid pkd46 with red system. the host cell 31bk lacked catalytic activity of dhqase ( arod ) and had a second copy of the arob gene, so it improved carbon flow into the quinic acid biosynthesis direction

    構建宿主菌基因精確定位突變株31bk ( arod : : arobkan ~ r )為了改變代謝途徑脫奎尼酸( dhq )分支點上的代謝流量,使之充分流向目的產物奎尼酸合成方向,利用基因打靶技術構建了31884宿主菌arod基因精確定位插入突變體,使dhq脫水酶( dhqase )失活,阻斷了碳代謝流流向芳香氨基酸生成的方向,同時用同源重組的方法將arob基因定位整合入染色體上,解除了限速酶對碳代謝流通過共同途徑到達dhq的阻遏影響,並減代謝負擔。
  5. Applying undiluted bleach directly to fabrics may result in color removal andor weakening of the fabric

    對于木棉及毛織品之微燒焦部份,如使用過氧化,很具效果。
  6. From the viewpoing of the balance of energy, burning furnace is the biggest of the energy consumers, it consumes a lot of fuel oil - light disel

    從熱量平衡角度來看,燃燒爐是整個無水氟化裝置的耗能大戶,它消耗大量的燃料油?柴油。
  7. Mgb2 can be cooled by liquid hydrogen or liquid neon or by fairly cheap, closed - cycle refrigerators that can readily reach below 20 k

    硼化鎂可以藉由液態、液態氖或是相當便宜的封閉循環式冷凍機,易降溫至20k以下。
  8. Explanation : this gorgeous image of orion shows off the constellation ' s young stars and cosmic clouds of hydrogen gas and dust

    說明:這張絢麗的獵戶座影像顯示了星座內年恆星以及由氣和塵埃組成的宇宙雲。
  9. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄準國家高技術對大口徑型鏡的戰略需求而開展的。主要研究內容是:根據光學玻璃的物理與化學性能,選擇型鏡坯材料;用有限元法對鏡子的變形進行分析、計算,找出變形規律,優化設計400mm型平面鏡、 450mm型球面鏡鏡體結構;分析玻璃切削原理,設計專用磨輪結構,選擇合理工藝技術參數,完成400mm平面鏡量化減重孔的加工;分析氟酸腐蝕光學玻璃機理,尋找最佳酸濃度、腐蝕作用時間等工藝參數,實現400mm平面鏡減重孔應力與微裂紋的消除;討論分離器加工原理和工藝技術特點,完成400mm平面型鏡面形加工。
  10. Anti - color change corrosion testing method of the metal deposits and conversion coatings of the light industrial products. hydrogen sulfide test

    工產品金屬鍍層和化學處理層的抗變色腐蝕試驗方法.硫化試驗法
  11. The application of hydroprocessing technology extends the source of fcc feedstocks ; deepens the extent of crude processing ; and improves the yields of light oil products, as well as reduces the enviromental pollution

    原料加預處理的應用、拓寬了催化裂化原料來源,提高了原油加工深度和質油收率,減少了環境污染。
  12. At compared with ni - cd battery is better owing to high specific cap - acity, no memory effect, and no cadmium pollutio - n. while it is used on electric vehicle, the complete weight of the vehicle can be reduced, the perform - ance of application is good and servicing life is long. it is an ideal power source for electric vehile

    電池與鎳鎘電池相比,既相似又超越,比能量高、無記憶效應、無鎘公害,應用於電動車上時,使整車重量減、使用特性優良、壽命長,是理想的電動車電源。
  13. It is a light fraction of petroleum. it can be used as solvent of insecticide aerosol, medicine and dyeing

    本產品為由石油的質餾分,經深度加精製所制得的hr - 92殺蟲氣霧劑用油。
  14. Helium is the lightest of all gases except hydrogen. it is more than seven times as light as air

    除了,氦是所有氣體中最的。它的重量不到空氣的七分之一。
  15. Calibration of spherical tanks for refrigerated light - hydrocarbon fluids in ships - method of stereo - photogrammetry

    船舶用質冷凍的碳化合物用球型容器的校準.第1部分:立體攝影測量
  16. The treatments are : caustic treating for light gasoline, selective hydrotreating for medium gasoline and conventional hydrotreating for heavy gasoline

    餾份經苛性堿處理,中間餾份經選擇性加處理,而最重餾份則經一般加處理來脫硫。
  17. Various feedstocks such as straight run distillate ( tbp in the range of 250 to 400 ), hco from fcc and the unconverted oil of hydrocracking can be processed to reduce the pour points for increasing diesel fuel production, accompanied with a higher overall gasoline plus diesel fuel yield in refinery

    以直餾蠟油、催化裂化重柴油和加裂化尾油為原料,經降凝可大幅度增產柴油,並可提高煉油廠質油收率、提高柴汽比、滿足市場需求。
  18. Being fine, homogeneous and free of melting, the powder prepared by mechanical alloying has applied to develop scattering strengthen - material, magnetic material, high - temperature material, superconductivity material, amorphous, and non - equilibrium material, compound material etc. as a high - tech technology to prepare alloying powder, ma has become a more and more important method for preparing new materials

    機械合金化法制備的粉末晶粒細小、成分均勻,且能避免熔化過程,已用於開發研製彌散強化材料、磁性材料、高溫材料、超導材料、非晶、準晶、納米晶等各種狀態的非平衡材料、復合材料、金屬高比強材料、儲材料、過飽和固溶體等。作為制備合金粉末的非平衡高新技術,越來越成為一種制備新材料的重要方法。
  19. This is composed of a mixture of deuterium ( a rare isotope of hydrogen ) and lithium ( a light metal )

    核彈的主體部位由一種氘與鋰的混合物組成,氘是一種稀有的元素的同位素,而鋰則是一種金屬。
  20. Portable stored - pressure powder series extinguishers are effective extinguishing appliances, in which extinguishing gaent sodium bicarbonate and ammonium phosphate powder together with the driveng gas - nitrogen are filled in a full - sealed container. during application, nitrogen drives to jetting powder for extinguishing, which is fast and effective in extinguishing, light in weight, convenient and simple in operation, safe and reliable

    手提式乾粉系列滅火器是一種便高效的滅火器材,它使用磷酸銨鹽和碳酸鈉乾粉滅火劑和驅動氣體氮氣一起灌裝在全封閉的容器內,滅火時由氮氣驅動乾粉滅火劑噴射滅火,具有滅火速度快、重量、效率高、使用方便、靈活、安全、可靠等特點。
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