We have already mentioned the problems associated with insuring high frequency, low severity events and they certainly fall into the self-retention category.
我们已经提到过一些跟高频率低幅度的事件有关的风险，它们肯定归入自我保留一类。
Protect ends with capped self-locking washers incorporating a spring steel insert to ensure permanent retention of cap in exposed locations.
对外露端部的保护，可采用自锁螺帽加以弹簧垫，以确保螺帽持续牢固的预紧力。
Reinforce the self moisture protection and retention of skin, give adequate moisturizing and nourishing to every skin layer, bring you watery and smooth skin.
强化肌肤自我保湿防护，锁住水分，使每层肌肤得到充分的保湿与滋养。
They can also be supplied as self-retaining units with a retention sleeve over the outer rings (FIG 10).
它们也可以作为自保持式单元供应，外圈上有保持套筒(图10)。
CONCLUSIONS: Using of self-etching bond system and composite resin to repair dental defects has indicated perfect retention and marginal sealing, which is worthy of wide clinical application.
结论：应用自酸蚀粘接系统和复合树脂修复牙体缺损，可以获得较好的固位性能和边缘封闭性，值得在临床上推广。
Conclusion: Using of self-etching bond system and composite resin to repair dental defects has indicated perfect retention and marginal sealing, which is worthy of wide clinical application.
结论：应用自酸蚀粘接系统和复合树脂修复牙体缺损，可以获得较好的固位性能和边缘封闭性，值得临床推广。
When used as degradable agricultural film, the SP film had the same heat retention as PE film, and good self—degradability, could be degraded within 3~6 months.
该膜作为降解地膜使用时具有与PE膜相似的保温性能，其自降解性能良好，在3～6月膜能全部降解。
A comparison was also made on the retention and drainage performance of the self-made and imported bentonite.
对比了自制膨润土和进口膨润土的助留助滤性能。
Objective:The purpose of this study was to evaluate the application result of self-drilling miniscrew implant anchorage in orthodontic patient who involved in molar extraction and retention.
目的：探讨种植体支抗在涉及磨牙拔除和保留的正畸病例中的应用效果。
Objective:The purpose of this study was to evaluate the application result of self-drilling miniscrew implant anchorage in orthodontic patient who involved in molar extraction and retention.
目的：探讨种植体支抗在涉及磨牙拔除和保留的正畸病例中的应用效果。
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