本发明 的目的是为解决现有小径落叶松只能直接用作建筑檩材或坑木的问题。
The invention is purposed to solve the problem of which can only be directly used as construction purlin or pitprop.
研究了松材线虫病疫木作矿井坑木安全利用的新方法，以期为松材线虫病疫木找到安全利用的新途径。
The research advance in pathogenic mechanism of pine wood nematode disease was reviewed from physiopathology and related microbes of the disease.
这种工艺与常规的浅眼爆破法掘进天井比较，具有非常突出的优点：工作条件得到改善，安全，可以节约大量坑木。
Compared with the conventional methods, this new, technique has very conspicuous virtues such as a much better working condition, safety in ope - ration, economy of timbers.
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