I have often found this to be necessary at the beginning of projects or working out which enhancements deserve further investigation and which should be abandoned straight away.
我发现通常这种方法在项目初期是必要的,对找出那些增强点值得继续调研哪些应该立刻放弃也是必要的。
Whether working or love, can "t be abandoned."
不管是工作或是爱,都无法抛弃。
Successful practice shows the application of such backfill material to abandoned roadway is a good solution to ensure the working face pass through abandoned roadway quickly, sa...
实践证明,采用高水速凝材料充填空巷是综放工作面快速、安全、经济地推过空巷的有效途径。
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