1·We tell you not only are they teeming with life, but the planets and stars and the space particulate between are themselves all conscious beings.
我们告诉你，不只那些(有形体)上满布着生命体，而且行星、星体和空间微粒之间也满布着有意识的存有。
2·A chemical threat needs a different approach, because chemicals come as mists or vapors that are largely immune to particulate filtration.
化学威胁需要不同的防护手段，因为化学品以雾或蒸气的形式存在，微粒过滤器对它们无效。
3·The Clean Air Act mandates the EPA to regulate harmful pollutants such as particulate matter and ozone.
《清洁空气法》授权美国环保局监管有害污染物，如微粒物质和臭氧。
4·If you have ever held a cloth or handkerchief over your mouth to keep dust out of your lungs, you have created an improvised particulate filter.
如果你曾经用布或手绢捂住嘴来阻挡灰尘吸入，那么你就自创了简易微粒过滤器。
5·In a gas mask designed to guard against a biological threat, a very fine particulate filter is useful.
预防生物威胁时，优良的微粒过滤器对防毒面具非常有用。