Couldn't Ai just have stepped out of the way, or kicked a big rock under her wheel or something?
不能仅仅有爱走出的方式，或踢在她的车轮或一块大石头的东西？
2
This paper discusses test and determination of the predicting formula for cutting resistance cf coal and rock and be referred to use for design calculation of bucket wheel excavator.
介绍煤岩切割阻力试验和预测公式，以供轮斗挖掘机设计计算使用和参考。
3
Research purpose: as a main tool to cut rock, disc cutter was mainly assembled on cutting wheel of TBM, mixed shield and rock shield.