The dissertation works on machinery house, fixed tie link and boom, which vibrate most severely on the container crane.
论文针对集装箱起重机振动现象较为严重的三处:机房、斜拉杆、前大梁进行了振动分析和抗振研究。
The Application of Digital Video Supervising System (A Book of Series of Information Science and Technology), China Machinery House, March 2003, Beijing , China.
刘富强,《数字视频监控系统开发与应用》(信息科学与技术丛书),机械工业出版社,2003.3。
You see them once a week out the front of your house but rubbish collectors are doing a tough job that exposes them to heavy machinery, harsh chemicals and a high-risk of traffic accidents.
你看见他们每周一次出现在你家门前,但其实垃圾收集工从事的工作很艰难。垃圾收集工要面对重型机器、危险的化学品和高危交通事故。
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