石油矿场机械设备用于支承钢丝绳的钢制绳轮，采用低弹性模量的材料制作，可大幅度地延长钢丝绳的使用寿命。
The service life of the oilfield wire rope can be greatly extended by using sheaves made of material with low elastic modulus.
为了确保保持适当的排列，以备用26“轮(最好的三轮车正在使用的1)和地方奏它把辍学。”
To insure the stays are properly aligned, take a spare 26 "wheel (preferably the one being used for the trike) and place it into the drop-outs."
应用推荐