Nowadays such heavy belts for outdoor transporting of bulk materials like stone, coal or boulder, are rugged rubber belts with a steel cord traction member.
如今，这样沉重的皮带，户外运送散状物料，如石料，煤或巨石坚固耐用的橡胶带与钢线牵引成员。
The reason is that the detection range of the probe is too small or there is dust inside the door, the door is too heavy, beyond the host motor traction.
原因是感应探头的探测范围太小或者内部有积尘现象；门体太重，超出了主机的马达牵引力。
The dynamic performance while heavy haul train traction and braking on straight lines, curves and ramps railway road condition;
重载列车在直线、曲线和坡道上牵引、惰行和制动时的动力学性能；
The dynamic performance while heavy haul train traction and braking on straight lines, curves and ramps railway road condition;
重载列车在直线、曲线和坡道上牵引、惰行和制动时的动力学性能；
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