求翻译：Hope for your help. 是什么意思? ... 医护人员 » Health care workers 单片 » Single 他们在那个公园享受 » Them in the Park enjoy ...
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single ply board 单层纸板
single ply canvas 单织帆布
single-ply bellows 单层波纹管
single ply bag 单层袋
Single Ply Roofing Institute 屋子顶天花板产业协会
single ply belt 单层传动带
single ply tape 单层带
single-ply tape 单层带
Single ply embossing, double ply embossing, steel to steel embossing.
单压花，双面压花，钢对钢压花。
Install, repair or replace single-ply roofing system using waterproof sheet materials such as modified plastics, elastomeric or other asphaltic compositions.
使用防水片材，如改性塑料，橡胶或其他沥青成分安装，维修或更换单层屋面系统。
Two-ply refers to materials that twist two threads together into a single thread, thus increasing the fabric's thread count and creating a stronger thread.
两层材料，是指两个线程一起扭成一个单一线程，从而增加了织物的线程数和创造一个更强有力的线程。
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