flap-type valve
英
美
瓣型阀门
flap-type valve的用法和样例:
例句
A needle valve with a threaded spindle is unscrewed to open a passage for the liquid to escape to the reservoir from the cylinder when the jack is required to be lowered.
当千斤顶需要下降时,一个带锭子的针型阀门被放松来使液体通过圆筒流回储备液箱。
flap-type valve的相关资料:
临近单词
flap
flapjack
目录
查词历史
英 汉