您要查找的是不是：
- face mask filter 防毒面具的过滤器
- What type of face mask should be used? 什么类型的口罩有预防功效?
- The face mask fits snugly over the face. 适合的面罩紧贴在脸上。
- Please enter a subnet mask or deactivate the subnet mask filter. 请输入一个子网掩码或使子网筛选器不活动。
- Jason: Really?! I finally can wear my Dolaemon face mask. 真的吗?!我终于可以戴我的小叮当口罩了.
- Members of the public may wear a face mask for self protection. 一般市民也可以佩戴口罩以加强防护。
- I donned a face mask and jumped in the pool to watch Ris swimming toward me. 我戴上防护面具跳到游泳池里看着里斯向我游来。
- Position the face mask of the Ambu bag over the client's mouth and nose. 将急救袋面罩置于患儿口、鼻。
- Victor: Sure! By the way, don't forget to wear a face mask to English class. 当然好!顺便告诉你,上英文课的时候,别忘了戴口罩。
- There is a simple yet elegant fix for this, and surprisingly it is done by using the Unsharp Mask filter. 有一个简单但绝对一流的办法来解决这个问题，答案可能会出人意料，是USM锐化滤镜。下面是这个滤镜的工作原理和过程。。。
- If you have to clean the cat's litter box, wear gloves and a face mask. 如果你必须亲自动手来清理猫砂，那么要戴上手套和口罩。
- This paper discussed the necessity of oil-repellent finishing of the filter with polypropylene meltblown nonwovens for protective face mask using in pesticide spraying and carried out the finishing. 讨论了农药喷施用防护口罩过滤材料熔喷聚丙烯非织造布拒油整理的必要性,进行了过滤材料的拒油整理。
- Face masks are of unproven value. 口罩有未经证实的价值。
- Those patients should be given a face mask to wear, preferably one that provides filtration of their expired air. 必须拿口罩给病患戴上，口罩最好能过滤患者呼出的空气。
- Ensure the face mask fits snugly on the face and is attached firmly by using the ties or rubber bands provided. 系紧口罩绳子,或把橡筋绕耳部佩戴妥当,务使口罩紧贴面部。
- People with respiratory tract infections, or those caring for them, should wear a face mask. 有呼吸道感染症状者,或要照顾该等人士者,应戴上口罩。
- If they have to leave home, they must wear a face mask and observe good personal hygiene. 若外出,要佩戴口罩,注意个人卫生。
- N95 respirator masks filter out 95% of particles to prevent the wearer from breathing them in. N95呼吸面罩过滤掉了95%25的微粒，以防止佩戴者将它们吸入。
- Position face mask or nasal mask tightly and adjust head strap until seal is maintained and client is able to tolerate. 带口罩或鼻罩,调整头部绑带,以密封、病人能耐受为宜。
- The non-sharp masking filter arithmetic was adopted to enhance the distinguishing the minuteness defects. 对焊缝中的微细缺陷,运用非锐化掩模滤波算法加强其微细缺陷特征,提高了微细缺陷的可分辨性。
