The color of the exhaust from a diesel engine should be () clear。 hazy light brown。 hazy light blue。 hazy light grey。
门式脚手架可调底座的调节螺杆伸出长度不应大于()mm。 100。 200。 300。 400。
请阐述CRH2辅助电源装置传输不良(204)的故障处理措施。
Scavenging in a four-stroke/cycle diesel engine occurs during the (). last part of the exhaust stroke, and the first part of the intake stroke。 last part of the intake stroke only。 early part of the injection stroke only。 early part of the power stroke。
The survey will in no way()cargo operation,but the main engine will require four-hour notice to be ready if necessary after completion of the survey. effect。 influence。 affect。 impre。
个人客户可在一卡通或存折()办理记账式国债账户开户业务。