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- A brand-new jib-bridge luffing system of crane is brought out based on analysis of the limitation to handle containers of the portal crane. 摘要在分析门座起重机用于集装箱装卸作业的局限性的基础上，提出一种新型的起重机变幅系统。
- A new-type quayside container crane with jib-bridge luffing system as the main working part is brought out. 摘要提出一种以臂桥架变幅系统为主要工作机构的岸边集装箱起重机。
- The optimization design of portal cranes' luffing system is justa real world problem. 门机变幅系统优化设计是将优化设计方法应用于工程设计中的产物。
- This thesis treats the above-mentioned jib-bridge quayside container crane as a research object, puts emphasizes on the movement characteristics of its luffing system. 本文以此新型岸边臂桥架集装箱起重机为研究对象，着重分析其变幅系统运动特性情况。
- New luffing system of portal crane and its design method 门座起重机的一种新型变幅系统及其设计方法
- Combining the design of portal crane luffing mechanism, this paper sets up the math model of the luffing system of the brachial-bridge container crane with combined compensating pulley. 本文以新型的臂桥架岸边集装箱起重机变幅机构组合式货物水平位移补偿系统的模型为研究对象，建立了吊重水平落差最小的数学模型。
- Optimization of cylindrical drum compensation luffing system for portal crane 门座起重机直卷筒补偿变幅系统的优化
- HYBRID NEURAL NETWORKS BASED PORTAL CRANES'LUFFING SYSTEM OPTIMAL DESIGN 基于混合神经网络的门座起重机变幅机构参数优化设计
- compensating pulley luffing system 变幅机构
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- The drainage system has been aged. 排水系统已经老化了。
- They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- He's mute on the subject of social system. 他对社会制度的问题保持沉默。
- He said he used this system in the year dot. 他说他很久以前用过这个系统。
- Our manager is conversant with account system. 我们的经理精通会计制度。
