公共卫生保健服务者，实验室，WHO职员和工厂都在日夜忙碌着。
Public health services, laboratories, WHO staff, and industry are working around the clock.
进行了书写纸微量涂布工艺技术的实验室研究和工厂试验。
Laboratory study and mill trial of mini_coating of writing paper have been carried out.
适用于工厂车间和实验室。
适用于工厂车间和实验室。
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