the planners say they have programmed thermostats, changed light bulbs in ceiling fans, replaced smoke-detector batteries and even once helped rewire the taillights on a horse trailer.

smoke detectors have become more common in homes in the united states.

美国的家庭已普遍地使用烟雾报警器。

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i wear all kinds of protection: a surgical mask, gloves, and goggles.

我戴着各种防护用品：外科口罩、手套和护目镜。

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medical institutions should provide protective face masks for medical staff, ensure protective face masks worn for experimental training and the corresponding wear suitable for experiments, to ensure that the tuberculosis infection prevention produce actual effect.

医疗卫生机构要为医务人员提供医用防护口罩，保证医用防护口罩的佩戴适合实验培训和相应的佩戴适合性实验，确保结核病感染预防控制工作落到实处，产生实效。

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while some public-health organizations have recommended respirators over masks, and other organizations masks over respirators, this was the first published randomized trial comparing their effectiveness in preventing influenza.

有些公共卫生组织建议使用呼吸防护口罩，而有些组织则推荐外科口罩。《美国医学会杂志》的这一研究是比较两种口罩在预防流感方面有效性的第一份随机性的评估报告。

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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。

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the school has instituted a policy against students doing aerobic activity without wearing protective masks when the particulate levels reach the hazardous range.

该学校制定了政策，当颗粒物水平达到危险范围时，禁止学生在没有戴上防护口罩的情况下做有氧运动。

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some of these respirators may be flammable; use caution around heat sources and do not smoke while wearing the respirator.

有些呼吸防护口罩是可燃的，在火源附近佩戴时要注意安全，也不要在佩戴呼吸防护口罩时吸烟。

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respiratory-if use conditions generate dusts, wear an approved respirator appropriate for those emission levels.

呼吸-如果使用条件会产生粉尘，需戴上经过批准使用的防护口罩以适应粉尘的排放水平。

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domestic and overseas standards of preventing respirator and several divisiform preventing respirator were presented.

介绍了国内外有关防护口罩的标准及几种各具特色的防护口罩。

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the cleaned respirator should be stored away from contaminated areas when not in use.

不使用时，清洁后的防护口罩应储存在远离污染的环境中。

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materials and characteristics of disposable nonwovens protective respirator are introduced in the paper.

介绍了纺织工业非织造布技术开发中心研制的一次性非织造布防护口罩产品的材料构成及性能特点。

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development and protective efficacy evaluation of bio-protective respirator

生物防护口罩的研制及其防护效果评价

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study on distribution of face contour of chinese and design of biological protective mask

中国人脸形分布与生物防护口罩设计研究

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results from the tests indicated the high capacity of the new respirator.

测试结果表明这种防护口罩性能优良。

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performance of a new mask material in filtering ambient aerosols for medical staff

新型医用防护口罩过滤环境气溶胶的性能

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are there any medical restrictions for wearing a respirator?

对佩戴防护口罩是否有医学方面的限制？

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discussion about the research and manufacture of disposable protective respirator

浅谈一次性防护口罩的研制

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structure property of a new filtering material for making medical masks

新型医用防护口罩过滤材料的结构与性能

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the donation includes surgical masks, n-95 respirators and safety goggles.

捐赠物品包括医用口罩、N-95防护口罩和护目镜。

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objective to evaluate the biological protection quality of fs9901 type respirator.

目的对FS9901型生物防护口罩的防护效果进行测试评价。

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