这些东西必须被密封放置在一个有冲压密封圈的，最大容量为一公升（一夸脱）的透明塑料袋中。
Containers must be placed and well-sealed in one transparent plastic bag with a press-seal, of a maximum capacity of one liter (quart).
本实用新型的工作原理是利用门密封圈的内圈唇口与冲压门体之间的挤压来实现密封功能。
The operational principle is that the utility model makes use of the extrusion between the inner ring lip of the seal ring and the stamping door body to achieve seal function.
密封圈(34)构成浮动密封，通过冲压加工而成型。
The seal ring 34 composes a floating seal and is formed by press working.
应用推荐