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spring counterbalancing造句

"spring counterbalancing"是什么意思   

例句與造句

  1. abstract : counterbalance problem of oil pumping unit is researched in detail, and it is pointed out that counterbalances of matching weight and gas pressure are two main types of counterbalance of oil pumping unit . the possiblity for oil pumping unit to use spring counterbalance or flywheel counterbalance is put forward
    文摘:對抽油機(jī)的平衡問題作了細(xì)致的研究,指出配重平衡與氣壓平衡是抽油機(jī)的兩種主要平衡方式,提出了采用彈簧平衡與飛輪平衡的可能性,說明了各種平衡方式的參數(shù)確定方法;指出提高抽油機(jī)效率的方法是提高電動(dòng)機(jī)和傳動(dòng)機(jī)構(gòu)的效率,并對后者作了分析與表示。
  2. It's difficult to find spring counterbalancing in a sentence. 用spring counterbalancing造句挺難的

相鄰詞匯

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