发动机活塞敲缸,发动机在该缸断火后,响声()或消失。 发布时间:2017-06-26 14:06 │ 来源:www.tikuol.com 题型:填空题 问题: 发动机活塞敲缸,发动机在该缸断火后,响声()或消失。
题型:填空题 A single fitting installed in a pipeline that either blanks off the pipe or allows a full flow passage of a liquid through the pipe is referred to as a().A.blind flangeB.pivot couplingC.quick-release couplingD.spectacle flange 查看答案