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。
Identification of the teachers there are pieces of this pattern plans crane dressed in the Qing Dynasty officials in North Korea's "sub-up" link on the crane, a system that goods used by the officer.
有鉴定家将此件图案仙鹤图清代朝中官员身着之“补子”上仙鹤联系起来，认为系一品官所用。
Four-link portal crane using the best combination of optimized boom system, with horizontal small gap, amplitude stable, low power consumption.
四连杆门座式起重机采用最佳优化的组合臂架系统，具有水平落差小、变幅平稳、功耗低的特点。
Portal crane sub frame and four-link arm two types, from the crane hoisting, luffing, slewing and walking four agencies ac frequency control, the machine USES PLC control, superior performance.
门座式起重机分单臂架和四连杆两种类型，起重机的起升、变幅、回转和行走四大机构均采用交流变频调速，整机采用PLC控制，使用性能优越。
On these cranes, the hydraulic RAMS that extend to raise up the crane do not push on the boom, but instead on a pivoting link-bar.
这些起重机，液压冲力并不是作用于吊杆上，而是作用于一个铰链连接杆。
On these cranes, the hydraulic RAMS that extend to raise up the crane do not push on the boom, but instead on a pivoting link-bar.
这些起重机，液压冲力并不是作用于吊杆上，而是作用于一个铰链连接杆。
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