工作矿井

In China, mining geology has undergone 50 years for its founding, developing andsystematization.

中国的矿井地质工作历经50年的创业、发展和完善，已成为煤矿建设生产中无可替代的一门边缘和应用学科。

The quantitative evaluation on geological structure complexity is one of the hotspots in the research of mining geology,the key techniques of which include selecting proper assessment indexes and assessment models.

摘 要：地质构造复杂程度定量评价是当前矿井地质工作的研究热点之一，其关键技术体现在评价指标和评价数学模型两方面。

This paper analysis Nanshan Coal Mine geology structure force condition, used in mine geology working of geology machanics.

分析了南山矿区地质构造的受力情况，把地质力学应用到矿井地质工作中。

The pilot circuit of underground motor control systems in common use is analyzed and the problems existed in the circuits such as self starting and un intrinsically safety,are pointed out in this paper.

分析了目前矿井电动机控制系统先导电路的工作原理，指出了其存在自起动和非本质安全型等问题。

I've quite become used to working in the pit.

我已经很习惯在矿井里工作了。

China's coal production and the exploitation of workers in well-oriented, while the underground work is first of all faced the problem of ventilation in the mine production process, we must continue to be ground fresh air supply to the various underground sites for staff and the exclusion of breath, and diluted Underground a variety of toxic and harmful gases and mineral dust, mine to create a good environment to protect the underground staff's health and labor safety.

我国煤炭生产以井工开采为主，而地下作业首先面临的是通风问题，在矿井生产过程中，必须源源不断地将地面新鲜空气输送到井下各个作业地点，以供人员呼吸并稀释和排除井下各种有毒有害气体和矿尘，创造良好的矿内环境，保障井下工作人员的身体健康和劳动安全。

They were mainly Mexicans who worked for my father at the mine.

他们主要是在矿井上为我父亲工作的墨西哥人。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。