預抽真空 的英文怎麼說

中文拼音 [yùchōuzhēnkōng]
預抽真空 英文
backing pressure
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
  • 真 : Ⅰ形容詞（真實） true; genuine; real Ⅱ副詞1 （的確; 實在） really; truly; indeed 2 （清楚確實） cl...
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 真空 : [物理學] vacuum; empty space; vacuo
  1. Tianjin fengdong heat treatment equipment co., ltd, sino - japanese joint venture, is a specialist firm to produce unicase series multi - purpose complete set, speria series pre - vacuum multi - purpose furnace complete set, uninite gas soft - nitriding furnace complete set, mesh - belt type continuous furnace, pit type bright annealing furnace and pit gas carbonitriding furnace complete set

    全套技術，生產滴注式unicase系列密封箱式多用爐成套設備， speria bbh型預抽真空多用爐成套設備，氣體軟氮化爐成套設備，網帶式連續爐，井式光亮退火爐及井式氣體滲碳爐成套設備，並承接各種非標熱處理設備的設計和製造。
  2. For example, vacuum metallurgy, power condensers, transtormers, vacuum macerate process, fore - sucking for vacuum coating equipment, etc

    如：真空冶煉，電力電容器，變壓器，真空浸漬處理，真空鍍膜設備中的預抽等。
  3. Based on the results of testing site, some problems of vacuum preloading was analyzed by plane strain finite element method. the relative stable seepage velocity field can be produced with the pumping time. the depth of negative pore - water pressure transferring increases with the pvds length

    最後，對真空聯合堆載預壓的施工工藝進行了研究，提出了在真空聯合堆載預壓的中期，出水量已相對較少，可適當減少開泵量，並可採用停抽結合的變真空能量法，在不影響加固效果的前提下，可以大大節省用電量。
  4. Bell type furnace is mainly used to steel strips, steel plantes, copper strips, copper plates and other metal parts for bright anneal and normal anneal heat treatments. according to the technics, the process of preevacuation. heating, protecting atmosphere gew or non oxidation heating, air cooling, fast colling and slow cooling treaments can be executed

    罩式爐主要是用於鋼帶、鋼盤圓、銅帶、銅盤圓及其它金屬材料及零件的光亮退火和一般退火工藝，根據熱處理工藝的要求，可對熱處理工件進行預抽真空、加熱、保護氣氛少無氧化加熱、空冷、快冷及緩冷處理。
  5. The cause of vacuum degree formation under groundwater table is discussed in the paper. the testing results show that vacuum degree above the groundwater table is produced directly by pumping air, and that vacuum degree below groundwater table is produced mainly by dewatering and by escaping of sealed air from the end of flexible pipe. based on the bernoulli equation, the limit lowering of groundwater table is analyzed, which is about 5 ~ 7m. the effective influence depth of vacuum preloading has relationship with pvds depth and can be more than 10m

    對地下水位線以下的真空度成因進行了分析，結果表明，地下水位線以下測到的真空度是由於測試軟管中水位下降或部分封存氣體從軟管末端逃逸引起的，與地下水位線以上的真空度由抽氣直接形成在成因上存在不同；根據伯努俐方程，對地下水位下降的極限深度進行了分析，得出真空預壓中地下水位的極限下降深度為5 7m ；對有效影響深度的分析結果表明，真空預壓的有效影響深度與塑料排水板的打設深度具備一定關系，有效影響深度可以超過10m 。
  6. Pre - evacuation protect atmosphere furnace

    預抽真空保護氣氛爐
  7. Our corporation locate at tianjin, near beijing - tianjin - tanggu expressway. " quality first, customer super " is our object. solid technical force, complete quality system and perfect service after sell is guarantee of excellent quality equipment

    所生產的「 unicase系列密封箱式多用爐」和「 speria bbh預抽真空多用爐」被中國熱處理行業協會評定為熱處理先進可靠設備，推薦企業優先選用。
  8. The mechanics of vacuum preloading was discussed by contrast of vacuum preloading and heaped preloading. the factors affecting the result of vacuum preloading for ground consolidation were as follows : the geological conditions of site, the intensity of vacuum pumping, the condition of underground water and installation of vertical drainage line. through analysis of these factors, some conceptions and design principles were proposed for vacuum preloading

    在此基礎上，通過堆載預壓與真空預壓的對比闡述了真空預壓加固地基機理，分析了影響真空預壓加固地基最終加固效果的各個因素：場地地質條件、抽真空作用強度、地下水賦存情況及豎向排水體的設置等。
  9. It is considered that the results are important base to further study and predicate the air exhausted time for vacuum drying of long - distance pipeline

    研究結果對進一步進行長輸管道真空乾燥抽氣時間的預測研究提供了重要的依據。
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