With their enormous size and weight, today's farm machines have significant downsides: they compactthesoil, reducing porosity and killing beneficial life, meaning crops don't grow so well.
There is a new blasting technology which utilizes the explosion effect of the explosive to compactthesoil to form the underground space with the non-compacted material as the cushion.
一种新型爆破工艺,需要采用不可压缩介质作垫层,利用炸药的爆炸作用对粘土进行挤压,形成地下空间。
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Withtheir enormous size and weight, today's farm machines have significantdownside: they compactthesoil, reducing porosity and killing beneficial life, meaning crops don't grow so well.