In this paper, designs for foundation pit drainage, concrete pouring as well as side wall form, etc in shaft well construction are discussed.

介绍了竖井施工中有关基坑排水、混凝土浇筑以及侧壁模板等设计问题。

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It provides access to a large-cross section of a well, instead of just a narrow, vertical shaft.

提供了一个大的油井截面，而不只是一个狭长竖井。

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Not only is the escape shaft ready, but the special capsule that was sent down to rescue the men has been tested to a depth of 610 metres, and the Mining Minister Laurence Golborne says all went well.

不仅营救巷道做好了准备，用于搭救被困矿工的特制救生舱也在地下610米的深度进行了测试。 矿务部长戈尔本(Laurence Golborne)表示一切工作进展顺利。

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The well shaft previously drilled vertically is redirected to become horizontal, with the drilling continuing until the shaft stretches out horizontally about half a mile to a mile.

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When the drilling is finished, water, combined with chemicals designed to reduce friction and serve other purposes, is injected from the surface into the well shaft at very high pressures, thereby fracturing the shale rock formations far below, and making it possible to extract economically the natural gas embedded in the shale.

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The halberd (an ax blade mounted on a long shaft with a useful hook for grabbing enemies) is well-represented in the sale.

WSJ: Collecting: Antique Arms and Armor Auctions Recall Ancient Warriors