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| 21. | This paper focuses on four main types of axial-symmetrical electrostatic lens: film aperture lens, double-cylinder |
| 本文具体分析了膜孔透镜,浸没双圆筒透镜(括等径和不等径),单透镜和浸没物镜这四类最主要的静电透镜。 |
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| 22. | double shell cylinder |
| 双层缸 |
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| 23. | double column cylinder drying machine |
| 双柱烘筒烘燥机 |
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| 24. | double-end cylinder |
| 双头缸 |
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| 25. | double rod cylinder |
| 双活塞杆油缸 |
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| 26. | high-pressure double cylinder oil pump |
| 高压双缸油泵 |
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| 27. | probed into the optimum matching relationship between partial parameters of single layered hydraulic cylinder |
| 本文探讨了单层液压缸和二层环箍式液压缸部分参数之间的最佳匹配关系。 |
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| 28. | double-welled cylinder section |
| 双层壁汽缸组 |
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| 29. | controls limited the potential design possibilities, but modern developments in dobby controls, such as double |
| 传统多臂的控制机构对花型有一定的限制,但当代多臂控制机构的发展,例如双花筒控制机构以及电子控制机构,使得由多臂织造的图案增加了。 |
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