single direction spring door的意思|示意
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单向弹簧门
single direction spring door的网络常见释义
单向弹簧门 ... helical spring 螺旋形弹簧 single direction spring door 单向弹簧门 pressure setting spring 压力可调节弹簧 ...
single direction spring door相关短语
1、 single e direction spring door 单向弹簧门