1·The history of a bloody battle in life, move on, as the formation of coal, with plenty of wood at that time, the result is a small lump coal.
人生的血战，前行的历史，正如煤的形成，当时用大量的木材，结果却是一小块煤。
2·The practice proves that given blasting technique can prominently raise the lump coal ratio and get a good economic benefit.
实践证明，文中所研究的爆破技术能较显著地提高块煤率，能取得较好的经济效益。
3·Practice has proved that this kind of technology can obviously improve the lump coal rate, increase the security of constructing, have better economic and social benefits.
实践证明，这种技术可以明显提高块煤率，提高产量，增加施工的安全，具有较好的经济和社会效益。
4·In order to attain the certain lump coal rate, the key is reasonable picks-lacing.
因而要达到一定的块煤率，关键是截齿的合理排列。
5·This method of coal preparation with air dense medium of deep fluidized bed provides a new way for lump coal separation.
深床型空气重介流化床分选方法为块煤排矸提供了一条新途径。