The device is mainly made up of inner tube, outer tube, piston tube, end cover, retaining ring, hanger, liquid-route element and sealing element.
该装置主体由内管、外管、活塞管、端盖、承压环、吊耳、液路元件和密封元件等组成。
Printed circuit board comprising a holding device for retaining wired electronic components, method for the production of such a printed circuit board, and use thereof in a soldering furnace.
具有用于保持已布线电子元件的保持机构的电路板，用于制造这种电路板的方法，及其在焊炉中的使用。
The invention relates to a motor vehicle having a sliding door (3), comprising a protection device (8, 9), having two retaining elements (10, 11).
本发明涉及一种带有滑动门(3)的汽车，包括保险装置(8、9)，后者有两个固定件(10、11)。
The invention discloses a continuous production device for an agricultural water-retaining agent prepared by in-situ polymerization and twice grafted polymerization methods.
本发明公开了一种用于原位聚合、两次接枝聚合法来制备农用保水剂的连续生产装置。
The steam-generating warming device further includes a water-impregnated, water-retaining sheet (6) adjoining the moist heating member (21).
邻接于蒸气热产生部（21），配置有含浸水分的保水性片（6）。
The steam-generating warming device further includes a water-impregnated, water-retaining sheet (6) adjoining the moist heating member (21).
邻接于蒸气热产生部（21），配置有含浸水分的保水性片（6）。
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