The goaf gas drainage is carried out by drilling holes with strike and middle-high-order at the π type caving coal face in the inflammable and high coal seam.
易发火特厚煤层π放工作面利用走向中高位钻孔实施采空区瓦斯抽放,解决了工作面瓦斯超限制约工作面生产的问题,效果显著,为低瓦斯矿井实现高体积分数瓦斯抽放提供了可行性依据。
It is one of the most common ways to study and illustate seam pattern and its space position that knowing about seam strike and dip angle according to the three*.
根据 3点 (3个钻孔 )的坐标值来确定矿层的走向和倾角 ,是研究并阐明矿层形态及空间位置最常用的方法之一 。
In this paper,the clastic model is used to study the reason of the large determinate error of the horizontal displacement on strike section in mining subsidence By correcting the traditional theoretical model,the new horizontal displacement law on strike section and the conclusion that the influence propagationangle on strike direction is unusually 90°are obtained.
本文利用碎块体力学模型对开采沉陷中走向水平移动预计误差大的原因进行了探讨。
Construction of a society of overall well-being and development trend of Chinese medical and health care;
全面建设小康社会与卫生事业的发展走向
Determination of Highway Arterial Trend in Highway Network Planning Area;
路网规划区公路干线走向确定
Trend of Chinese Agricultural Policy in New Era;
新时期我国农业政策的走向
He walked slowly down the Rue de la Roquette.
他顺着罗琪里路慢慢向回走。
`Nothing but to go away,' echoed the guide.
“只好走吧。”向导回答。
The soldiers marched to the other side of the park, turned about, and marched back.
战士们向公园的另一侧走去，又向后转，往回走。
Sometimes he set out in that direction;then he returned.
有时，他朝那方向走去，随即又转回来。
She walked along, zigzagging with her head back.
她回头看着，歪歪扭扭地向前走。
head south, back to camp, away from the town, towards home, etc
朝南、 回营地、 城外、 家里等的方向走.
She dashed back to the supermarket, got the tea and went towards the cash-desk.
她冲回超市，拿了些茶叶，向收银台走去。
She drew in her head again, and beckoned Nell to approach.
她把头缩回来，招手叫耐儿走向前去。
Walking in the city, we seldom turn and look back.
走在城市中，我们很少回头向后看。
Retrospect and Prospection:Analysis of Developing Tendency of Textbooks of Teachers Spoken Language;
回顾与展望:《教师口语》教材走向分析
Socialism with Chinese Characteristics: back to Reality,to Science;
中国特色社会主义:回归现实,走向科学
The Teaching Effectiveness of Adult s Education Returns;
走向“有效”:成人教育的教学回归
Going against Superior and Regression--A Brief Discussion on Trend of Natural Science in the 21st Century;
僭妄与回归——简论21世纪自然科学走向
Toward pine "I":SHI Tie-sheng s answer to "Who-am-I";
走向神性“大我”——史铁生回答“我是谁”
At length I thought I might return towards the stockade.
我终于觉得可以折回来向木寨方向走去了。
She went forward a few yards, checked and turn back
她向前走了几码, 突然停住脚步又返回来
He walked to his tool shed and came back with a garden spade.
他走向他的工具棚，回来时拿着一把园艺铲。
She went forward a few yards, checked and turned back.
她向前走了几码, 突然停住脚步又返回来.