The research shows that gas concentration shows generally an increasing tendency along the working face airflow direction, from 0.095% to 0.18%, under the effect of gas drainage points, up-and-down changing locally; gas distribution in a transect of working face is unequal, under the effect of gas emission, ventilation and drainage, the gas concentration near coal wall is larger than that near goaf, which is a concave function distribution within a distance of 1876.5 m from the inlet of working face, after greater than 76.5m, which is a decreasing distribution from coal wall to goaf.

研究表明91直接免费看黄视频，該工作面瓦斯體積分?jǐn)?shù)沿風(fēng)流方向總體呈逐漸增加趨勢(shì)亚州天堂在线观看，介于0.095%~0.18%之間，受瓦斯抽放點(diǎn)的影響国产精品亚综合一区二区三区，局部有起伏變化黄色视频看看；工作面橫斷面瓦斯體積分?jǐn)?shù)分布不均勻，受瓦斯涌出欧美A天堂、通風(fēng)和抽放的影響真人特级毛片免费视频，靠近煤壁側(cè)瓦斯體積分?jǐn)?shù)要高于采空區(qū)側(cè)，在距離進(jìn)風(fēng)口約18~76.5 m范圍內(nèi)為凹函數(shù)分布黄网址在线永久免费观看免费，大于76.5 m之后国产第三页，從煤壁至采空區(qū)為單調(diào)下降函數(shù)分布。

Let them come quickly and intone a dirge for us, That our eyes may be wet with weeping, our cheeks run with tears.

叫她們迅速前來(lái)欧美黄色A片一区二区，對(duì)我們啼哭色哟哟最新国产精品自在观察，使我們的眼睛流下眼淚，使我們的睫毛涌出淚水

At the same time, the technology of coal mining also developer quickly, compare with before mine exploitation is much more centralize, production and new building mine are increasing accretion. Because of this the character of mine size, exploitation deep, assistant exaltation and gas effuse are gradually increasing.

同時(shí)视频专区亚洲免费，采煤技術(shù)也迅速發(fā)展欲香欲色综合网天天涩综合，礦井開(kāi)采的集中化程度日益提高，生產(chǎn)和新建礦井的井型日益增大，逐漸形成井田尺寸小在线A片中文亚洲、開(kāi)采深度大国内免费自拍1视频在线观看网址、輔助提升任務(wù)大和瓦斯涌出量增加等特點(diǎn)。

Sample to the value of gas emission of every tunnel once, the whole wind network will be sampled once. For a kind of sample, we will equipoise the gas flow in wind network.

對(duì)每一條巷道瓦斯涌出量值進(jìn)行一次抽樣亚洲区国产日韩区在线观看，實(shí)際就是對(duì)整個(gè)風(fēng)網(wǎng)進(jìn)行一次抽樣亚洲福利视频专区，對(duì)整個(gè)風(fēng)網(wǎng)的一次抽樣在風(fēng)網(wǎng)中進(jìn)行瓦斯流平衡，從而得到每條巷道的瓦斯流流量值影音先锋5566乳爆制服。

If you got a deep cut in your arm,there's usually a gush of blood.

假使你的手臂有很深的割傷国产多人在线，通常會(huì)有鮮血涌出。

They only stopped when they noticed blood was gushing out of my head.

他們只停下的時(shí)候人人看人人摸人人草，他們發(fā)現(xiàn)血液涌出出我的腦袋亚洲欧美va在线播放。

All that remains to be done is for you to step back, and marvel at your creation, and wait for the visitors to come gushing in.

所有要做的是讓你再退一步，很佩服你的創(chuàng)作激情淫荡乱伦小说图片，等待前來(lái)涌出黄片2级。

Waters gush from Grass Lake in June, near the start of Jiuzhaigou's wet season.

流水從6月的草海涌出，那是九寨溝雨季將要開(kāi)始的時(shí)候欧洲黄色无码。

Their tears of sympathy fell fast as they looked upon His bruised and lacerated form.

當(dāng)他們望著那受傷破裂的身體時(shí)久热日韩视频免费无码AV，眼中不禁涌出同情的熱淚。

This phrase produced an extraordinary effect on Mme Lerat, and tears came into her eyes.

這句話對(duì)勒拉太太產(chǎn)生不尋常的效果色色色二月天。她的眼里涌出了淚水三级黄色免费看。