Chinese | English |
因为缺乏成熟的机械破碎模型、爆破行业只好依赖经验方法 | The blasting industry has had to rely on empirical approaches in the absence of a proven mechanistic fragmentation model |
火药资金、粮食、劳动力、电力、工具缺乏 | a shortage of powder (fund, grain, labor force, electricity) |
缺乏的 | absent |