Horizontally pushing lifting jack of direct shear tests are operated on rock mass shear strength test. - center point group analysis is used for treating shear test data.

用平推法直剪试验进行岩体抗剪断强度试验，用-点群中心法处理直剪试验数据。

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Metallurgical hoist, electric hoist, chain hoist, chain hoists, trolleys, grab, electric flat car, lifting electromagnet, hand hoist, sling, Jack, hoist, bearing.

电动葫芦，冶金葫芦，环链葫芦，手拉葫芦，单轨小车，抓斗，电动平车，起重电磁铁，手扳葫芦，吊索具，千斤顶，卷扬机，轴承。

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The lifting capacity of this chain hoist (hydraulic jack, screw jack) is 5 tons.

这个倒链（油压千斤顶、螺旋千斤顶）的起重能力为 5 吨。

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