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mine prop
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  “mine prop”译为未确定词的双语例句
     The purpose is that on the premise of guaranteeing safe production of mine , prop load and the costs of mining are reduced to the maximum extent, the mining intensity and the rate of ore are improved to the maximum extent, thus the economic benefits , social benefits and environmental benefits of enterprises are improved by a large margin .
     其目的就是在保证矿山安全生产的前提下,最大限度地减少支护工作量和降低采矿成本,最大限度地提高采矿强度和矿石回收率,从而大幅度提高企业的经济效益、社会效益和环境效益。
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  相似匹配句对
     The conservation of pit prop at ancient copper mine
     古铜矿遗址地表坑木的保护
短句来源
     Application of timbering with tubular prop to in-mine roadway digging
     管棚支护技术在煤矿井下巷道掘进中的应用
     Polaris mine
     北极星矿山
短句来源
     Mine reform
     矿井技术改造的启示
短句来源
     the legal prop is the necessity ;
     公众参与环境保护必须有法律作后盾;
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Dahurian larch growing in nature can be divided into two types according to the wood colour in Daxingan mountains.One is red.the other is white.According to the national standard of the " Testing methods for physical and mechanical properties of wood",the parameters of wood colour and physical and mechanical properties of the above two different woods have been tested and analysed by the authors. The purpose of this test is to provide scientific bases on the wood properties for the typical studies of fast-growing...

Dahurian larch growing in nature can be divided into two types according to the wood colour in Daxingan mountains.One is red.the other is white.According to the national standard of the " Testing methods for physical and mechanical properties of wood",the parameters of wood colour and physical and mechanical properties of the above two different woods have been tested and analysed by the authors. The purpose of this test is to provide scientific bases on the wood properties for the typical studies of fast-growing and high quality of dahurian larch.The result shows that the colour rational phenetic parameters, physical and mechanical properties and workabilities of two woods are very different. The dahurian larch-wood of red wood is hard.heavy,high in strength, more resinous and more durable, but it is apt to collapse and deform,and also relatively difficult in working. It is suitable for construction and industry,e g.sleepers,mine-props, bridge-girders, vehicles and so on.The dahurian larch-wood of white wood is high in strength-to-weight ratio, suitably hard and heavy.relatively good in workability and very suitable for fine interior decoration,construction and industry, e.g.furniture. floor lumps, interior decoration.door.window and plywood etc..It is superior to the dahurian larch-wood of red wood as a valuable timber tree. Therefore,we propose that the departments of wood production.salesmen and the consumers should use them differently according to their individual character.

大兴安岭天然生长的兴安落叶松,根据材色可分两种类型:即红色材和白色材。按照GB1927-1943-91《木材物理力学性质试验方法》,对上述两种材进行了材色、物理性质和力学性质的测试和分析。其结果表明:红、白两种材色的兴安落叶松.在木材的颜色定量表征参数、物理力学性质和加工性能等方面,均存在着很大的差异。红色材材质硬重,强度高,树脂含量高,耐腐性强,但干缩变形大.加工也比较困难,适用于建筑和工业用材、如枕木、坑木、桥梁、车辆材等;白色材强重比高,重量和硬度适中,加工性能比较好,更适用于精细加工的室内装饰、建筑和工业用材,如家具、地板块、室内装饰、门、窗和胶合板等,在利用价值方面优于红色材。因此,建议木材生产销售和使用部门,应根据这两种木材各自的特点、区别利用。

The stability of the goafs of Liangshi gypsum deposit is mainly influenced by the small thickness,water-absorption and low strengths of compression and shear of the upper walls of the orebodies;and by the clearages and bedding ;as well as the undergraound water activity and irregular mining.By evaluating the stability parameters such as the upper wall thickness,solidness and the strength of the mine props,etc,dangerous area of the goafs are predicted. Practical and economic protection measures are proposed...

The stability of the goafs of Liangshi gypsum deposit is mainly influenced by the small thickness,water-absorption and low strengths of compression and shear of the upper walls of the orebodies;and by the clearages and bedding ;as well as the undergraound water activity and irregular mining.By evaluating the stability parameters such as the upper wall thickness,solidness and the strength of the mine props,etc,dangerous area of the goafs are predicted. Practical and economic protection measures are proposed for the goafs.

两市镇缓倾斜石膏矿床采空区稳定性的影响因素,主要有矿体顶板硬壳——青膏层的厚度薄,易吸水软化,抗压抗剪强度低;区内局部节理发育、层理密集;地下水活动以及开采不规范等。针对采空区的顶板厚度、稳固性、矿柱强度等稳定性参数,预测了采空区危险地段,建议对采空区采取监测、封闭、排水、充填、联合支护等既安全又经济可行的防治措施。

 
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