| 释义 |
1 ?密封针 ... sealed radioactive source 释义：密封放射源 needle seal 释义：密封针,针状密封垫 water-tight 释义：防水的,密封的 ...
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The main features are as follows: Elasticity can be used as shock, seal, gasket and an elastic steel wire needle felt cloth base material. 主要特征如下：富有弹性可作为防震、密封、衬垫和弹性钢丝针布底毡的材料。 - 2
Metal rifle body, soft seal between the top of the nozzle and the needle, ready for use. 金属枪体，使用方便，喷管顶端部位与顶针的密封采用软性材料密封，经济实用。 - 3
Plastic rifle body, soft seal between the top of the nozzle and the needle, ready for use. Economical but last... 塑料枪体，喷管顶端部位与顶针的密封采用软性材料密封，经济实用。
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