转速下降的英文

• slip

• 转速:    speed; revolution; rotation ...
• 下降:    descend; go or come down; dr ...
• 变速下降:    variable speed lowering; variadle-speed lowering
• 等速下降:    uniform descent
• 陡速下降法:    method of perturbing concentration

例句与用法

1. To make an rpm-drop test, a tachometer is needed .
   做每分钟转速下降试验时，需要一个转速表。
2. According to pump performance curve shown we can get that the distance h is changed with the rotate speed n in the same point q , and the flux q is changed with the rotate speed n in the same point h . from the curve we can get the rule that the distance and rotate speed are in direct with ratio at the same flux point , and the rotate speed and the flux are also in direct with ratio at the same distance point
   根据相似定律：流量与转速的一次方成正比；扬程与转速的二次方成正比；功率与转速的三次方成正比。即在降低转速，调低水泵出水扬程的同时，功率下降的幅度非常大，从中可以节省相当大的电能。完全应在高水位时降低水泵机组转速，从而使电机的输出功率随着转速下降值与转速原值商的三次方关系下降。
3. The propeller may be overloaded which caused by some reasons when ship has been serviced for a period of time . as a result , the rated revolution of the engine cannot be achieved , or the engine may be on overloaded operation condition . it will not be in the optimum matching between the propeller and the engine
   船舶在使用过程中，常因各种因素使螺旋桨出现负荷过“重”的现象，主机达不到额定转速或超负荷运转，桨机不能处于最佳匹配；另外当船舶人为地降速航行时，主机处在半负荷情况下工作，如果转速下降太多，使得主机的工作条件变坏，容易引起主机部件的损坏。