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，在 1775 年，苏格兰发明家亚历山大·卡明 (Alexander Cumming) 在排水管了一个弯头以保留水并限制气味。

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

听来像是漏水的弯头管件，零件号 5P440。 正要上床睡，最好去修理它。

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，货设备传动轮弯头在开舱时不穿过吊杆，原因为使用吊杆不安全。