LKD2-T2型TCC列控通信接口单元的作用是什么?
查看答案
水准仪主要由望远镜、水准器和()三个主要部分组成。
A. 基座
B. 照准部
C. 水平度盘
D. 三角架
运行设备已执行的定值通知单可以不用为当前运行且有效的定值通知单。
A. 正确
B. 错误
Access to a cargo pumproom on a tanker carrying grades A,B,C or D liquid cargoes shall be().
A. at least 13.1 feet away from the galleys,living quarters or navigation spaces
B. from the open deck
C. only from areas equipped with power ventilation systems
D. isolated from any part of the vessel which normally contains sources of vapor ignitio