额定防护时间 protective time 防护性能 protective performance 自救器防护性能测试装置 testing system for the protective performance of self-rescuer ..
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The connection characteristic between guardrail board and post has very great influence on the protective performance of the guardrail.
3．护栏板与立柱之间的连接特性对护栏的防护性能有很大的影响。
参考来源 - 汽车碰撞动力学响应分析及波形梁护栏防护性能的改进研究·2,447,543篇论文数据，部分数据来源于NoteExpress
结晶组织较细的镀层，其防护性能和外观质量都较理想。
Crystallization organization fine plating, its protective performance and appearance quality is more ideal.
通过现场应用试验表明其劳保服装具有良好的防护性能。
The test of on-site application shows that it has a good protecting power.
在呼吸防护口罩和脸部之间夹在任何东西，这会降低防护性能。
Anything that comes between the respirator and your face will make the respirator less effective.
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