《气瓶安全监察规程》规定充装单位应符合相应的充装站安全技术条件国家标准的要求,严格执行气瓶充装有关规定,确保不错装、不超装、不混装和充装质量的可追踪检查。
A. 正确
B. 错误
In a centrifugal Freon refrigeration system, the overall capacity of the system is increased by()
A. opening more bypass lines
B. opening additional expansion valves
C. adding refrigerant
D. speeding up the machine
You are on watch and the pilot has just anchored the vessel.The next thing that you should do after the anchor has been let go is to().
A. Stop the engines
B. Escort the pilot to the accommodation ladder
C. Plot the vessel's position on the chart
D. Make a round of the weather deck
数字证书载体是指能够装载电子证书的特殊物理介质,网上银行专业版用户必须使用()