caterpillar tractor是什么意思

用法例句

Not only their adaptability to the bedplate fluctuation andflexinility are not very well, but they are expensive, The article theoretical gives stressanalysis and strengty culatino of the common thain track and the new chain track in the articl

本文对通用型和新型链轨式牵引的链轨，从应力状态和强度计算作了理论性探讨。

Research and Production of Steel 35MnBM for Caterpillar Chain Link;

履带链轨节用钢35MnBM的研制

The microstructure and mechanical properties of the chain guide frame made of imported and home made materials as well as products meta bainited casting steel were investigated by mears of optical microscop (OM)?X ray phase analysis, scanning electron microscopy (SEM) and mechanical testing.

用金相分析、X射线衍射、扫描电镜及力学性能测试分析了进口、国产及准贝氏体铸钢链轨架材质的组织及力学性能。

The diagram method of polygon flux linkage track is presented,and its software realization method is given out.

以正多边形磁链轨迹控制基本原理为基础,设计了TMS320F240全数字控制PWM变频器,确保高速响应快,低速脉振小及较高转速精度的要求;并且给出了正多边形磁链轨迹作图法及其软件实现方法,提高了控制的实时性,实现了逆变器开关频率的自动调节。

The energy conversion processes of switched reluctance motor and switched reluctance generator were analyzed based on the flux trace and the formula to calculate the energy efficiency of switched reluctance motor was deduced.

基于电机运行时的磁链轨迹,详细分析了开关磁阻电动机及发电机的能量转换过程并推导出了它的能量效率计算公式。