third gear

Do finite element analysis on the third shaft and gear shaft of shearer cutting unit. Then calculate the equivalent stress, such as cloud and the maximum stress value.

针对采煤机的薄弱环节截割部的截三轴和太阳轮进行有限元分析，得出其等效应力云图及最大等效应力值。

This is gear knob: neutral gear, first gear, second gear, third gear, fourth gear, fifth gear, retreat gear.

这是变速杆手球：空档；一挡；二挡；三挡；四挡；五挡；倒挡；

You shouldn't try to start in third gear.

你不应当试图以三档启动.

Pull the handbrake, shift the third gear to the neutral gear.

拉起驻车手刹，三挡换空挡；

This driving mode allows you to move off in third gear to reduce wheel-spin in icy conditions.

在这个驾驶模式下你可以挂3挡起步，以减少轮子在结冰路面上打滑的现象。