1) drainage before mining
采前预抽
1.
Gas is one of the biggest threatens to safety production in coal mine and the destructor of humans living environment,so the efficiency drainage before mining and using of CBM have been paid more attentions.
瓦斯是煤矿安全生产的最大威胁之一,同时也是人类生存环境的破坏者,因此,有效地进行采前预抽和利用已受到人们的重视。
2) Before-Harvest
采前
1.
Study on Biochemistry Physiology of Lotus Before-Harvest and After-Harvest;
莲藕采前及采后的生理生化研究
3) preharvest spraying
采前喷施
1.
Effect of preharvest spraying chitosan on storage properties of litchi;
采前喷施壳聚糖对荔枝贮藏性能的影响
4) weak signal detection
采前探测
5) exploration prospect
开采前景
1.
The article gives a relatively over all introduction of the conditions of Russia's natural gas resources;analyses Russia's volume of conventional natural gas resources and its distribution as well as exploration prospect and describes the evaluation volume and its exploration prospect of Russia's non traditional natural gas resources.
较全面地介绍了俄罗斯的天然气资源状况 ;分析了常规天然气资源量及其分布和开采前景 ;阐述了非传统天然气资源评估量及开采前景。
6) the model before mining
采前模型
参考词条
补充资料：设备安装前的准备工作——设备的预装配与预调整
设备安装前的准备工作——设备的预装配与预调整 | ||
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。