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- the protective coal column 保护煤柱
- It has outlined the law of geometry formula computation as well as the formula derivation of the coal amount among the range of protecting coal column,has pointed out the superiority of this law comparing with the traditional method. 概述了保护煤柱留设的几何公式计算法以及保护煤柱压煤量公式的推导,与传统方法作了类比,指出此法的优越性。
- Study on Engineering Geologic Property of Bed Rock Weathering Zone and The Mechanism of Decreasing Protective Coal Column 基岩风化带的工程地质特性与缩小防护煤柱机理研究
- The protective plastic jacket consists mainly of polyurethane. 现在给瓶子包上一层用聚安酯制成的外套。
- One of these gunmen pierce the protective cordon around the president's house. 其中一个持枪人突破了总统住房周围的警戒线。
- Probe into the Method of Protecting Coal Column Retaining and Settings 保护煤柱计算方法的探讨
- Remove the protective cap and turn the switch on. 取下保护罩并接通电源。
- The police tried to keep back the protect crowd. 警察试图阻止保护的群众。
- He's devoted his whole life to the protection of the rare animals. 他终生献身于珍稀动物的保护。
- The ships required the protection of naval and air power. 船只本身需要海军和空军的保护。
- protecting coal column 保护煤柱
- Every citizen may claim the protection of the law. 每一公民均可要求法律的保护。
- The protective cap or hood covering the spore case of a moss or related plant. 藓帽盖在苔藓或相关植物芽孢体上的保护帽或盖子
- We begin gently fanning away the protective sand. 我们先把保护它的沙土轻轻地吹去。
- One of these gunmen pierced the protective cordon around the President's house. 其中一个持枪人突破了总统住房周围的警戒线。
- At present in gasoline de-mercaptan Process active carbon is mainly in forms of coal column and fruit shell(coconut,apricot,etc). 目前应用于炼油厂汽油脱硫醇装置的活性炭有煤质柱状活性炭、果壳(椰壳、杏壳等)活性炭。
- The chicks are under the protection of the hen. 小鸡们在母鸡的保护下。
- The isolated island working face is surrounded with the goaf and its Surrounding coal column and goaf have a tendency of spontaneous combustion. 孤岛综放工作面四周均与采空区相连,其四周煤柱和工作面采空区易于出现自燃发火。
- Changes the protection of the private key. 更改私钥的保护。
- Remove the protection cap securing henge. 将墨盒上的保护帽除去;
