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
Chen et al deemed that for an image subblock with a single straight edge, the corresponding DCT (discrete cosine transform) coefficient energy compaction orientation and the spatial edge orientation were perpendicular to each other [2].
证明了含平直单边缘图像子块，其ＤＣＴ变换系数能量并不总是集中分布在与其空间边缘走向垂直的方向上。
Meanwhile, the sufficient and necessary condition for the orientation of an arbitrary simple polygon is given.
同时,给出了任意简单多边形走向的充要条件。
The unbalance financial distribution implies the overall orientation of the governments.
从政府间财政分配关系所反映的政府财力的非均衡性可以看出政府间关系的宏观走向。
Development and Tendency of Quality Breeding under New Situation of Commercial Maize Breeding;
商业化育种新形势下玉米品质育种动态与走向
The Present Situation and the Coming Tendency of Agricultural Economical Structure in 3 Regions of China;
中国三大区域农业经济结构的现状及其未来走向
Development Tendency of Public English Teaching;
公共英语教学走向之我见
A strike-valley sand is deposited in the drainage course of a subsequent stream valley.
走向谷砂岩是在次生河谷水系中沉积的。
These tributaries are subsequent streams which erode strike valley.
这些支流系即为蚀出走向谷的次生河。
Such sandstones should have similar angular relations to the strike valleys.
这种砂岩体与走向谷之间与有类似的交角关系。
Going Out of Valley On the Way to Rising --Chinese developing vigorously and perplexing;
走出谷地 走向崛起——中国的振兴与困扰
" I decided that instead of continuing forward-- east-- I'd cross the ravine and head up to a saddle to the south.
”我决定不再向东走，改而穿过深谷，走向南面的一个山脊。
He had been making north by east, away from the Dease Divide and into the Coppermine Valley.
他一直在向北偏东走，他已经离开狄斯分水岭，走到了铜矿谷。
A person standing at the bottom of a valley, no matter which direction he chooses, he could only go higher.
站在谷底的人，无论朝哪个方向走，都只会走得更高。
Down in the valley, valley so low,
走入山谷，山谷如此的低，
He went boldly in, thinking that the passage would open out into a sunny glen on the other side of the mountain.
他大胆地走了进去，以为这条小路会通向山那边有阳光的山谷。
Developing orientation of China s metallic mines to get rid of their difficulties;
我国金属矿铁矿山走出低谷摆脱困境的发展方向
These two geological bodies contact along the trend of valley, where you can see the granite is intruded into the sedimentary rocks.
以上两种地质体沿着山谷走向方向接触，花岗岩侵入于砂岩、粉砂岩中。
To blow(chaff)off or away.
吹掉吹去，吹走（谷壳）
Bottom out (of a recession)
(从经济衰退中)走出谷底
IN THIS PART OF THE ALPS, the valleys run north and south between towering ranges of mountains.
发现奥兹的地点，位于阿尔卑斯山脉，那儿高耸的山夹著南北走向的山谷。
He hid himself in the caverns of the Joug-de-l'Aigle, and thence he descended towards the hamlets and villages through the ravines of Ubaye and Ubayette.
他躲在鹰轭山洞里，从那里出来，经过玉碑和小玉碑峡谷，走向村落和乡镇。
Happiness is U-shaped, for we are happier at the start and end of our lives but hit a slump when we are middle-aged, British and US researchers say.
英美两国的研究人员称，人一生的快乐呈U形走向，童年和老年时期最快乐，中年时期处于最低谷。
The world historic theory and "span the karfuting canyon of capitalism" --the case analysis of Eastern society towards the way of world history
世界历史理论与"跨越资本主义卡夫丁峡谷"——东方社会走向世界历史道路的个案分析
The turkey struts about (the barnyard).
火鸡翘起尾羽 (在谷仓附近) 走来走去。