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。
2
Whether working or love, can "t be abandoned."
不管是工作或是爱，都无法抛弃。
3
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...