精确地预计弯头和管件的影响尚无方法可循.No methods are available for the accurate prediction of the effect of bends and fittings.我们常用弯头(管、兰、通、小关)为一种管件.We usually use elbow flangetee, reducer as a kind of pipe fitting.在人井2中,将弯头卸下,便于设备进入.Debu...

“弯头”的英语可以翻译为：angle head，[机] elbow，elbow pipe，ell ...

“弯头”的拼音为：wān tóu...