他的23位学生上课的教室现在有了电灯、吊式电扇和安全的屋顶。
His classroom with 23 children now has lights, ceiling fans and a secure roof.
每根吊杠的安全工作负荷是多少？
用吊笼以提供螺栓连接和检验的安全通道。
Cage is adopted to provide safe access for bolting and testing.
这吊货索十分之三的钢丝断了，为了安全，我建议换掉它。
The cargo runner has three tenths broken wires. I suggest you replace it for safety.
他吊在半空中，安全带救了他。
不过，最安全的方法还是用专用吊件将橱柜固定在楼板上。
However, the safest method or by special to a string of fixed in floor ambry.
不过，最安全的方法还是用专用吊件将橱柜固定在楼板上。
However, the safest method or by special to a string of fixed in floor ambry.
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