Thursday, September 15, 2022
Thursday, September 15, 2022
设备防雷接地的基本原理是()。A、引雷入地B、设备吸收C、屏蔽D、避雷...
Wednesday, November 22, 2023
漂浮型橡胶护舷主要特点是:压缩变形小,吸能大、反力小、自漂浮,易...
Monday, September 12, 2022
压力表通过表内的()的弹性形变,再由表内机芯的转换机构将压力形变...
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
在进行LNG倒罐操作时,两罐之间压差为()A、0.2兆帕B、03兆帕C、1.5兆帕D、0.1兆帕...
Tuesday, May 2, 2023
Monday, September 12, 2022
在用35公斤手推式灭火器进行灭火操作时,拿起喷枪应视火势距火源(...
Thursday, September 15, 2022
LNG管道通常采用的保冷材料是()。A、泡沫玻璃B、聚氨酯泡沫C、岩棉D、膨胀珍珠岩...
Monday, February 20, 2023
Thursday, September 15, 2022
下列()不属于电弧焊。A、埋弧自动焊B、埋弧半自动焊C、电渣焊D、气体保护焊...
Wednesday, November 22, 2023
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Monday, September 12, 2022
在LNG加注站中,当储罐压力升高,紧急情况下可以通过()来放空,...
Thursday, September 15, 2022
Monday, September 12, 2022