High firing pressures and a low exhaust temperature in a diesel engine may result from ().
A. decreased piston to cylinder head clearance
B. increased exhaust system back pressure
C. early fuel injection timing
D. low scavenge air temperature
CASE OF DEATH OR SERIOUS INJURY TO A PERSON IN AN ACCIDENT OR SHIPPING DISASTER is().
A. Salvage
B. Operations of the salvage
Casualty
D. Injury
提升企业CRM能力需要变革传统组织结构,减少中间管理层,直至完全取消之。
A. 正确
B. 错误
联锁在一定程度上提高了生产的自动化水平,对保证安全意义重大。化工生产前后相关性很强,停车涉及的面广,影响较大,安装、使用联锁要综合考虑。
A. 正确
B. 错误