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塑胶环 [sù jiāo huán]
teething ring
- 女用安全套是一种柔软、菲薄、已润滑的聚亚安酯塑胶护套，其两端均有柔软的乳胶环；
The female condom is a soft, thin lubricated sheath of polyurethane plastic with flexible latex rings at both ends. - 塑胶闭口环壳环向载面变形中弧段长度变化最大的是中性线与内拱之间特别是靠近中性线的一段；
The most deformation place in circle of across section of Osha pe ring shell is between flank and intrados, and nearby intrados. - 塑胶环可整个被压缩，不会影响固定力，要拔下时，只需轻轻捏住塑胶部份即可。
The plastic hoop can be compressed thoroughly without impacting the stability. Simply with a gentle pinch to the hoop, the thumbtack can be taken off.
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