扬程Lifts 安全保护Safekeeping of security 压缩机过热保护，过流保护，高低压力保护，超温保护，流量保护，相序 / 缺相保护，排气过热保护 , 防冻保护The compressor exces...
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John is the American bailiff, in witness safekeeping of security main task.
蒸发密令约翰是美国法警，在证人安全保护中心工作。
Threshold mechanism and forward safety mechanism is two kinds of important method about key safekeeping of security.
门限机制和前向安全机制是有关密钥安全保护的两种重要思想。
Analysed the mainly security protection feature of the digital winch. Proposed some ideas and Suggestions about safekeeping of establishing pattern and the testing method.
对数字式绞车的主要安全保护特性进行分析，对其保护的设置型式和试验方法提出了一些想法和建议。
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