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Actuator design with fully sealed waterproof high degree of protection.
执行机构采用全密封防水设计防护等级高。
youdao
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Second number said moisture proof, waterproof airtight degree.
第二个数字表示防湿气、防水侵入的密闭程度。
youdao
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Second number said moisture proof, waterproof airtight degree.
第二个数字表示防湿气、防水侵入的密闭程度。
youdao