例句與造句

1. en 1827 respiratory protective devices . half masks without inhalation valves and with separable filters to protect against gases or gases and particles or particles only . requirements, testing, marking
   呼吸保護裝置.無吸入閥帶防止氣體或氣體微粒或只有微粒的分隔濾膜的半口罩
2. respiratory protective devices-half masks without inhalation valves and with separable filters to protect against gases or gases and particles or particles only-requirements, testing, marking; german version en 1827 : 1999
   呼吸防護裝置.不帶吸入閥門和帶氣體含塵粒氣體或純
3. respiratory protective devices-half masks without inhalation valves and with separable filters to protect against gases or gases and particles or particles only-requirements, testing, marking
   呼吸保護裝置.防氣體或氣體和顆?；蛑环李w粒的無吸氣閥帶分離式過濾器的半面罩.要求試驗和標(biāo)記
4. It's difficult to find separable filter in a sentence. 用separable filter造句挺難的