您要查找的是不是:
- Test and Study of Compaction Plant to Different Back Fill Material 基于不同回填材料的压实设备的试验研究
- APPLICATION OF STOPING-AND-FILLING METHOD USING PASTE-LIKE BACK FILL MATERIAL TO COAL MINING UNDER SURFACE BUILDINGS 建下似膏体充填开采新工艺的探讨
- The best filling material is silver amalgam. 充填料以银汞合金为好。
- The necessary padding material,Chute structure,pattern of pedestrain raise and stope support in the application of dry back filling method are inquired. 介绍了在干式充填采矿法中,对采场所必须采用的铺垫材料、溜井结构、行人天井及采场支护等技术问题作初步探讨。
- A new cooling tower adopting cellulose pads as filling material to deal with the stability problem of the back pressure of ejector is also proposed. 为了应付因环境温度过高的造成喷射器背压之稳定性问题,本研究也开发新型水帘片式冷却水塔。
- Production : PVC fill material, hardware and complex cases. 生产:聚氯乙烯填充料、五金杂件。
- Conclusions The hydroxyapatite complex is the ideal filling material. 结论羟基磷灰石复合体是较为理想的充填材料。
- All cut material will be used within the works site as fill material. 所有挖掘物料将会作为堆填物料使用。
- Due to the unique advantages in coal mining, the back fill technology with high water material for rib in used gateway is getting more and more special attraction from the coal mining industry. 高水材料巷旁充填沿空留巷技术由于其在采煤生产中的独特优点而愈来愈受到采矿界的高度重视,并逐步得到推广应用。
- To realize the design, the paper puts forward the formular to calculate the length of back filling area. 提出对台背回填进行刚柔过渡设计,提出了台背路基工后沉降控制标准,提出了台背回填长度确定公式;
- Filling materials in the filtration cores of water filter. 滤水器滤芯充填物。
- Mainly white production, filling materials, toughener. 主要生产白种、填充料、增韧剂。
- Make development, mining and back filling design for the underground according to the survey and geology information, supply the technology support for to operation the designs. 根据地测信息做开拓、回采和充填设计,为这些设计的实施提供技术支持。
- Studied the water flowing characteristics in gangue used as water-gravel-mixed filling material from one Uranic mine. 摘要利用某铀矿尾矿作为水砂充填料的水流特性研究,针对不同粒度的试样,进行常水头渗透试验。
- When reclaiming earthworks, accumulated water shall be cleaned-up first. It is strictly forbidden to back fill earth with water. 填筑土方时,应将积水清理干净,严禁带水回填。
- By a quarter of wave length commutator principle, combining with electromagnetic wave absorb of filling material. 利用四分之一波长转换器原理,结合填充材制成电磁波吸收体。
- Secondly,that seepage rate of filling material is mainly determined by the smallest gran... 渗透速度对孔隙率很敏感;在孔隙率从低到高的变化过程中;渗透性也会从低到高发生很大的变化.
- Studying the feasibility of using graphite scoria as filling material of expressway. 探讨采用石墨矿渣作为高速公路填筑材料的可行性。
- Today, all the silicone membrane breast implants we used are not ideal filling material in augmentation mammoplasty. 硅胶膜乳房假体,目前已不是理想的隆乳材料。
- Objective To evaluate the clinical effe ct of the specially made Ti-Ni point as filling material in pulpal-periapical di seases. 目的观察用特制钛镍合金针作弯曲狭窄根管的固体充填材料,治疗牙髓尖周病的临床疗效。