first of all, based on the field analysis of very soft coal fully mechanized face immediate roof and the movement of top coal.

although the immediate roof of baidong colliery is relatively soft, its basic roof is glutenite and difficult to control.

白洞煤矿采场顶板中虽然直接顶较松软，但基本顶岩层为砂砾岩，属于难控顶板。

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according to stratum quality index, this paper established classification norms of immediate roof and main roof.

本文依据岩层质量指数，建立了直接顶和老顶的分类准则；

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immediate roof type ii is not suitable for large mining-height technique.

II型直接顶暂不宜采用大采高开采技术；

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since lump size of upper-immediate roof is large, a semi-arch equilibrium structure of the stratum-rock sometimes can be formed.

上位直接顶岩块强度较高、块度较大，容易形成“岩-矸”半拱式平衡结构。

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look around their master bag bar, 3 iron, 4 iron iron wood base are replaced.

看看周围高手们的球包吧，3铁、4铁基本都被铁木杆替代了。

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steel and stainless steel products and components, scrap, steel, aluminium scrap, scrap iron, wood, scrap paper.

采购产品钢和不锈钢产品和零件，废品率，钢，铝废料，废铁，木材，废纸。

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our products are made of steel, ductile iron, wood and recycled plastic.

我们产品使用的材料有钢、球墨铸铁、木材和再生塑料

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iron wood makes up the solid frame construction and serves as comfortable floor for the children to play on.

铁木构成了坚实的框架结构，并且孩子们可以在上面玩耍。

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development of the new hand hydraulic lift truck

一种新颖手摇液压升降车的研制

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analysis of stern structure vibration and vibration damping for coast small sightseeing ship

沿海小型旅游观光船艉部结构振动与减振

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and it's the very same people leading wall st. firms who, on sundays, show up and share.

而且同样是这些人领导着华尔街上的公司到了礼拜天，去教会去分享。

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by the 1890s, the leading wall street bankers were becoming increasingly disgruntled with their own creation, the national banking system.

历史翻到了1890年代，华尔街主要的银行巨头们对他们自己构建的国民银行体系逐渐开始感到了不满。

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built in 1965 at frederick, oklahoma, usa, as a 2 seat light helicopter powered by one lycoming vo-360-b1a 4-cylinder piston engine.

建于1965年在冯检，俄克拉何马州，美国，作为一个2座位轻型直升机动力之一，莱康明阁-360-b1a4缸活塞式发动机。

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"yan'an on the 2nd" machine is a single two-seater light helicopter blade.

“延安2号”机是单桨式双座轻型直升机。

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the hughes model 300 is an american three-seat version of the hughes 269 light helicopter.

美国休斯300型是休斯269型的三座轻型直升机改进型。

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engrossing common seal, signature stamp and sound shape stamp to pay these charges on behalf of party a;

制作公司钢印、签字章、圆胶章各一枚，代付印章费；

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name and office of a responsible person date signature, stamp

办公负责人员姓名日期署名，印章

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the thumbprint of the artist can act as the signature stamp transcending cultural differences?

那么这个以艺术家本人拇指指纹为印的戳记，是否可以超越文化差异呢？

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any signature, stamp or notation of receipt of the goods by the carrier or agent must be identified as that of the carrier or agent.

由承运人或其具名代理人以签字、印戳或批注表明货物收讫。

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traditionally, computer memory indexing started at 0 and ran to 655360 (640 kilobytes).

过去，电脑内存的地址开始从0到655360（640千字节）。

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