欢迎来到牛牛题库网 牛牛题库官网
logo
搜索

单项选择题

组合式活塞顶部严重烧蚀，若最大烧蚀厚度超过1/2顶部设计厚度时应

A.局部更换
B.堆焊
C.改变安装位置
D.换新
点击查看答案&解析

相关考题

单项选择题
建筑设计,章节练习,基础复习,外国建筑史
A.罗马市波波洛广场为该规划手法
B.由建筑师冯纳勒尔设计(G.Valadier)
C.是14世纪文艺复兴时期作品
D.运用轴线对称、均衡、韵律原则
单项选择题
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.
A.large conical springs
B.compressed air pressure
C.hydraulic pressure
D.exhaust gas pressure
A.A.large
B.compressed
C.hydraulic
D.exhaust
单项选择题
One of the factors limiting the amount of toad which can be put on a modem marine diesel engine is the_______.
A.governor sensitivity
B.exhaust temperature
C.fuel injection pressure
D.speed of the cam shaft
A.A.governor
B.exhaust
C.fuel
D.speed
微信小程序免费搜题

All Rights Reserved 版权所有©牛牛题库网(nntiku.com)

备案号：湘ICP备2022003000号-1

微信扫一扫,加关注免费搜题

微信扫一扫,加关注免费搜题