Special postal articles refer to postal date-marks, postal tongs FOR lead sealing and postal bags.
指邮政日戳、邮政夹钳和邮袋。
special postal articles: referring to postal date-marks, postal tongs for lead sealing and postal bags.
邮政专用品：指邮政日戳、邮政夹钳和邮袋。
In the lack of condition for the pressure test, it is not allowed to remove the lead sealing of the reversing valve to adjust the pressure regulating button.
在不具备压力试验条件时，不允许拆掉换向阀的铅封和调整调压弹簧座。
Cable inner end must use steel nut cap. Lead sealing is required for the sealing between the cable inner head and metal sleeve, which has a good sealing property.
电缆内端头应使用钢制封帽，与金属套的密封必须采用铅封，密封性能良好。
In addition to causing the welding line to break off, may also lead to other local damage near the welding line, such as sealing data.
除了招致焊接线烧断外，还可能招致靠近焊接线的其他局部损坏，例如密封资料。
In the case of painting, finishing, and sealing applications, these particles lead to fisheyes in the finish, making powder free gloves the better choice for these applications.
在漆油漆、整理和密封应用的情况下，这些粒子会形成鱼眼（即一种缩孔）。这就使得无粉手套成了这些应用的更好选择。
Negative defense will only lead to be attacked and only depending on sealing off the existed system leaks can't solve information security problems.
消极防御只能被动挨打，单纯依靠封堵现有的系统漏洞不能从根本上解决信息安全问题。
The major reasons for terminal post corrosion of valve regulated lead-acid batteries are explained. Some sealing methods and influence factors are discussed.
论述了阀控密封铅蓄电池极柱腐蚀的原因。讨论了端极柱密封的方法和影响端极柱密封性能的主要因素。
Especially, the key techniques, i. e. lead connection at connector, lead insulation on pipe wall, and sealing reliability are analyzed and studied, and also the t...
重点对其关键技术即接头处导线连接方式和管壁中导线的绝缘、密封可靠性进行分析研究，提出了开发有线钻杆传输系统的思路和建议。
In this paper both lead borate sealing glasses and lead free phosphate sealing glasses are studied.
本文研究了含铅的硼酸盐封接玻璃和无铅磷酸盐封接玻璃。
There are also sealing washers on the plates, which are used to seal pas-sages and lead fluids into passages alternatively.
板上装有密封垫圈，用以密封通道并将流体交替引导到通道中。
There are also sealing washers on the plates, which are used to seal pas-sages and lead fluids into passages alternatively.
板上装有密封垫圈，用以密封通道并将流体交替引导到通道中。
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