工作矿井

In view of the problem of deep deposits caving minning, through the recalling of deep deposit caving mining new technologies, sublevel caving with throughout-frontal ore drawing is put forward, which can recall all of the rocks of the ore, and the ore has the best recovery parameters, the high extraction strength, more favorable conditions of work safety.

针对深厚矿床崩落开采法的问题，通过回顾深部矿床崩落开采法的新技术，提出改进的端部放矿分段崩落采矿法，在矿井能够从跨落的岩石下回收所有的矿石，具有最好的矿石回收参数，高开采强度，较有利的安全的工作条件。

The paper introduces the computer interior management and drawing system on the engineering survey of coal mining and roadway driving. This system standardizes the computer interior management, intellectualizes drawing, storing, and editing. It is used well in Jinpushan Coal Mine.

介绍了煤矿采掘工程测量的计算机内业管理和绘图系统，该系统实现了矿井测量工作内业管理的标准化，实现了采掘工程图件的计算机绘制、存储和编辑的智能化，在晋普山煤矿实际应用效果良好。

My father was responsible for the explosives in mines.

我父亲的工作是矿井爆破。

This discourse describes the application of JC series middle voltage frequency converter which is made in China in coal pit belt conveyer machines; it describes details about the operational principle of coal belt conveyer machines and the method of frequency derived alteration.

本文叙述了国产基茨系列中压变频器在煤炭矿井采煤作业面输送皮带机变频改造中的应用；详细地叙述了输煤皮带机的工作原理和变频改造的方法。

Based on the double-loop DC motor speed automatic control system works, the paper design and research the coal mine hoist DC converter system.

本文根据直流电动机双闭环调速自动控制系统的工作原理，对煤矿矿井提升机直流调速系统进行了设计和研究。

The paper introduces a speedy effective way how to solve winch location jump by modifying SD drive control and PLC program after main hoist of panyi coal mine hoists appears depth indication fault.

提升机是矿井主要机电设备之一，确保其安全正常运转，提高工作效率，降低故障影响时间至关重要，文章介绍了潘一主井提升机出现深度指示故障后通过修改SD传动控制及PLC程序解决绞车位置跳变故障的一种快速有效的方法。

Through the application of the company's expertise, experience and its access to advanced surface to inseam drilling technology, and working closely with its Chinese partners, SGE is becoming a significant participant in the development of clean energy projects from the recovery and use of CBM from virgin coal seams and workings coal mines.

我们将同国内外业内人士专家广泛合作，结合本公司煤层气专家在煤层气工作的多年成功经验和先进的地表到煤层的水平钻井技术，专注中国煤层气能源项目开发。我们的目标是从未开采煤层和生产矿井抽放利用煤层气，为中国清洁能源开发利用竭尽全力。

The study of methane-accumulation prevention and methane drainage theory and technology is the key for solving the problem of mine methane explosion accidents while the study of coal and methane outburst prediction together with the preventive measure sand technology is the basic guarantee to the controlling of coal and methane outbursts.

防止瓦斯积聚与瓦斯排放理论及其技术的研究，是解决矿井瓦斯爆炸事故发生的关键所在，而研究煤与瓦斯突出的预测及其防治措施技术是控制煤与瓦斯突出发生的根本保证。本文根据上述两方面存在的瓦斯问题，以理论、实验、计算机数值模拟和井下试验相结合的方法开展研究工作。

Basing on the theory of two-phase flow of gas and solid, and the characteristics of coal mine driving working face , using the discrete phase models of computational fluid mechanics to simulate the dust concentration during the ventilation process of coal drift driving with exhaust ventilation.

根据气固两相流理论，针对矿井掘进工作面的特点，采用计算流体力学的离散相模型对掘进工作面通风过程中粉尘浓度进行数值模拟，总结抽出式通风掘进巷道中粉尘浓度的沿程分布及变化规律。

A system for Fan mine based on ST-JK06 intelligent monitor Terminal is introduced in this paper.

本文设计了基于ST-JK06系列智能监控终端的矿井风机监控系统，文中对监控系统的整体设计、工作原理、应用扩展等三个方面进行了详细介绍。

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。