旋轉尾工 的英文怎麼說
中文拼音 [xuánzhuǎnwěigōng]
旋轉尾工
英文
spin finishes-
Company has expertise on multi - lateral well, rotating liner hanger cementing, geosteering, vertical drilling, dexpandable pipe, casing open window, verious completion, repairing, incident handling, special tubing running, special connection maching and so on
有能力進行分支多底井、旋轉尾管固井、地質導向、防斜打直、膨脹管、套管開窗,各種完井、修井、事故處理、特種油管套管下入、特種絲扣加工等。The submarine noise detected by sonar consists of two parts : propeller - generated hydro - dynamical noise, which can be greatly reduced by improving the submarine rear shape ; radiated noise from the submarine structure excited by the centrifugal forces ( moments ) of rotatory machine, which is more complicated and influenced by many factors
聲納所探測的潛艇噪聲包括兩部分,一是螺旋槳運轉帶來的水動力噪聲,二是潛艇主機工作時產生的不平衡力和力矩引起潛艇結構振動,帶動流場振動從而輻射噪聲。通過改進潛艇尾部線型設計,已將水動力噪聲降到比較低的程度,而結構噪聲則復雜得多,與許多因素有關。
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