说明一长声、三短声、三长声、一长一短一长声的声号的含义。...
Thursday, September 22, 2022
Thursday, September 22, 2022
应定期检查钢瓶内二氧化碳的存量,若二氧化碳的重量减少()应及时补充。...
Thursday, September 15, 2022
及时而正确的信息交流是操作者进行组织和控制管理过程的依据。...
Friday, September 16, 2022
Wednesday, September 21, 2022
Friday, September 16, 2022
船舶发生搁浅、触礁事故后应及时显示号灯号型:夜间垂直3盏红灯,白天垂直3个黑球。...
Thursday, September 22, 2022
安全教育是提高人员安全素质和控制人为因素的有效途径之一。...
Saturday, September 17, 2022
Friday, September 16, 2022
我国军用船舶、渔业船舶上的船员不必执行《海船船员值班规则》。...
Thursday, September 22, 2022
Thursday, September 15, 2022
Tuesday, September 20, 2022
《防止油污规则》中的特殊区域是指地中海、波罗的海、黑海、红海、“海湾”、亚丁湾区域。...
Thursday, September 22, 2022
刚性连接式灭火器的喷射用喷射软管与瓶头阀相连,喷口可以绕瓶头阀上下左右任意移动,喷射软管与喷口的连接处有人握持的手柄....
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Monday, September 19, 2022
Thursday, September 22, 2022