您要查找的是不是：
- double column pneumatic hammer 双柱气锤
- After steel is made, it needs forging, which nowadays is done with a pneumatic hammer. 钢炼出来要锻。现在锻要拿汽锤锻。
- Pneumatic hammer is optional to carry out the construction of pilot bore in gravels, rocks and backfills. 可选配气动冲击锤，用于卵砾石、岩石和回填杂土中导向孔的施工；
- Pneumatic hammer is optional to carry out the construction of pilot bore in gravels rocks and backfills. 可选配气动冲击锤，用于卵砾石、岩石和回填杂土中导向孔的施工；
- A mechanism attached to a motor vehicle engine that supplies power to a nonvehicular device, such as a pump or pneumatic hammer. 分动器，动力输出机构：机动车引擎的辅助机构，能为非车辆装置提供动力，如泵或气动锤
- The Times was much stirred by Humboldt's death and gave him a double column spread. 《时报》对洪堡的死大为震动，给他安排了两栏的篇幅。
- The upsetting test of metal powder sintered preform by blow speed of the hydraulic press,crank press,pneumatic hammer and high energy rate forging hammer was reported. 研究了用液压机、曲柄压力机、空气锤及高速锤的打击速度对粉末冶金烧结体进行的镦粗试验。
- The reasons for selecting open or closed hydrostatic guideway on the CNC double column boring and milling machine were discussed. 并对数控龙门镗铣床床身工作台导轨副采用开式或闭式静压导轨的理由分别进行了论述。
- The serise pneumatic hammer is applied to all kinds of free forging, such asextending, heading, punching, cutting, forging and welding, twisting, bending, and mould forging as well. 系列空气锤适用于各种自由锻造,如延伸、镦粗、冲孔、剪切、锻焊、扭转和弯曲等。也可进行胎模锻造。
- Pneumatic hammer drilling technology with low wob,low rate of revolution and high capacity to break rock is one of the best effective methods to solve the problems of hard rock drilling. 空气锤钻井是一种低钻压、低转速、高冲击破岩回转钻进技术,它兼容了气体钻井和冲击回转钻井的优势,其机械钻速一般比回转钻井高,是当今解决硬岩钻井难题的一种有效方法。
- The three coordinate numerical control double column cutting tool can adopt some variety of incise method, for example: the laser incises, the plasma incises, the high pressure water incises etc. 该三自由度数控龙门切割机可采用多种切割方法，如激光切割、等离子切割、高压水切割等。
- Results show that the elution curves calculated by the model of the non-equilibrium double column cycling chromatography are good agreement with experimental elution curves of chromatography. 结果表明：采用非线性非平衡双柱循环色谱模型计算的流出曲线与实验结果相吻合。
- This paper discussed the raw coal selection method for a low ash coal preparation and the separa-tion technology of a low ash coal with the columned pneumatic floatation machine. 探讨了低灰煤制备原料的选择方法和浮选柱制备低灰煤的分选工艺。
- drill jig for pneumatic hammer valve 气动锤阀钻模
- This ** discussed the raw coal selection method for a low ash coal preparation and the separa-tion technology of a low ash coal with the columned pneumatic floatation machine. 探讨了低灰煤制备原料的选择方法和浮选柱制备低灰煤的分选工艺。
- double column jig boring machine 双柱坐标镗床
- The trenchless pneumatic hammers which don t rotate themselves during drilling include impact moles, pipe ramming hammers and pipe bursting hammers. 穿孔过程中自身不回转的非开挖气动锤包括冲击矛、夯管锤和爆管锤。
- double column vertical boring and turning mil 双柱立式镗车床
- CNC double column jig boring machine 数控双柱坐标镗床
- Low ash coal with an ash content lower than 2% can be separated from some suitable coal with its purification ability and by a high efficient cyclonic microfoam columned pneumatic floatation machine. 对于一些适宜的煤种，利用净化能力强、分选效率高的旋流微泡浮选柱可以分选出灰分小于2%25的低灰煤。
