20.the opening hatch cover method also not to be satisfied that using the warping head of cargo gear not through derrick boom open the hatch cover because using derrick boom is not safe.

开舱盖的方法不令人满意，起货设备传动轮开舱时不穿过吊杆，原因为使用吊杆不安全。

Sounds like a leaky elbow pipe fitting, part number 5P440. I was about to go to bed, but I better go fix it.

起来像是漏水的管件，零件号 5P440。 正要上床睡觉，但去修理它。

Thankfully, in 1775, Scottish inventor Alexander Cumming added a bend in the drainpipe to retain water and limit odors.

值得庆幸的是， 1775 年，苏格兰发明家亚历山大·卡明 (Alexander Cumming) 排水管中增加了一个以保留水并限制气味。