| 释义 |
1 ?密封风 ... seal=密封 sealing air=密封风 sedimentary=沉积，沉淀的 ... 2 ?密封 ... sealing 密封,封接,封口 sealing air 密封 sealing barrier 密封膜,外壳 ... 3 ?密封用的空气 ... sealing compound 电缆膏,封口膏,密封... sealing air 密封用的空气... sealing chamber 封闭室,电缆终端器...
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The invention relates to a vacuum packer, especially a vacuum chamber, working flat board and sealing air extraction device. 本发明涉及真空包装机，特别涉及一种真空包装机的真空工作室、工作平板及密封抽气装置。 - 2
All sootblowers shall be provided with a positive pressure, sealing air system to wall boxes and poppet valves. This air shall be obtained from the seal air fan system. 所有的吹灰器都应配有正压、密封空气系统至壁箱和圆盘阀。该处空气来自密封空气风机系统。 - 3
The greatest single advance began in 1800 when a Frenchman, Nicolas Appert, discovered that he could preserve certain foods by sealing them in jars and keeping the air from them. 最大的进步开始于1800年，当时法国人尼古拉斯·阿佩尔发现，他可以把某些食物密封在罐子里，不让空气进入。
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