四大车 meaning in English

sd-003a2

The present paper describes the basic principles and its application in the interlocking of 4 main coke oven vehicles
阐述其基本原理以及在焦炉四大车联锁中的应用。
Has four main workshops for castings processing , steel parts processing , installation and debugging and spray painting . the company mainly produces plastic injection molding machines in more than ten specifications and models with injectioncapacity of45 - 2 , 500g and mold clamping force of 500 - 5 , 000kn . the major parts such as electric equipment as well as hydraulic and sealing parts all employ advanced imported products , which have greatiy improved the precision and stability of the plastic machines
设有铸件加工钢件加工安装调试喷漆四大车间，主要生产注射量45 - 2500g ，合模力500 - 5000kn共十几种规格型号的塑料注射成型机电器液压和密封件等主要部件均采用先进的进口件，使