@thebonddaddy @CAgovernor @WhiteHouse Nope.
https://www.usgs.gov/faqs/how-... https://t.co/XAonCIGNoA

@thebonddaddy @CAgovernor @WhiteHouse 不。
https://www.usgs.gov/faqs /如何-... https://t.co/XAonCIGNoA

@MichaelSFuhrer Let's say sensitivity of a survey is 50% and independent of infection ordinal (there are some false positive too, ignored here). 50% of first infections will be picked up, but 50% of second infections will also report as first infections.

@MichaelSFuhrer 假设一项调查的敏感性为 50%，并且与感染顺序无关（也有一些误报，此处忽略）。 50% 的首次感染会被感染，但 50% 的二次感染也会报告为首次感染。

@MichaelSFuhrer A survey is going to bias toward zero (1->0, 2->1, etc.). Doesn't make the survey invalid for what it is.

@MichaelSFuhrer 一项调查将偏向于零（1-

@FinchTH @dgurdasani1 Most likely. The only realistic way to avoid that route would be if respiratory mucosa aren't amenable to infection either at all or with such low susceptibility that it require an enormous dosage. Not "generating aerosols" isn't really a thing.

@FinchTH @dgurdasani1 很有可能。避免该途径的唯一现实方法是，如果呼吸道粘膜根本不易于感染，或者其易感性如此之低以至于需要大量剂量。不“产生气溶胶”并不是真正的事情。

@FinchTH @dgurdasani1 The idea that it is "hard" to get things to aerosolize and only happens under very specific circumstances is completely wrong. It's more like the opposite.

@FinchTH @dgurdasani1 让东西雾化并且只在非常特定的情况下发生的想法是完全错误的。它更像是相反的。

@FinchTH @dgurdasani1 (Not disagreeing about closed tubes. That was dumb, yeah).

@FinchTH @dgurdasani1（不同意封闭管。那很愚蠢，是的）。

@FinchTH @dgurdasani1 Almost anything that disturbs liquids or particles is an AGP. Run a particle counter for a while and you'll see.

@FinchTH @dgurdasani1 几乎任何干扰液体或颗粒的东西都是 AGP。运行粒子计数器一段时间，你会看到。

@testinprodcap @0xfbifemboy Xi Jinping

@testinprodcap @0xfbifemboy 习近平

@Mr_Inquisitr @chambersfw1 @LieslMcconchie Yes that's right. I'm assuming this is the Nordic Pure MERV 15 since I don't see the filter level in the photo. The version using the Lennox MERV 16 has even higher CADR but costs a bit more.

@Mr_Inquisitr @chambersfw1 @LieslMcconchie 是的，没错。我假设这是 Nordic Pure MERV 15，因为我没有在照片中看到过滤级别。使用 Lennox MERV 16 的版本具有更高的 CADR，但成本更高。

@chambersfw1 @LieslMcconchie The filtration medium in this sort of filter isn't itself thick, it has pleats. Thicker filter means wider pleats and more surface area, so lower resistance.

@chambersfw1 @LieslMcconchie 这种过滤器中的过滤介质本身并不厚，它有褶皱。更厚的过滤器意味着更宽的褶皱和更大的表面积，因此阻力更低。

@greg_travis @TRyanGregory That doesn't account for the supernatural force that surround schools and prevents transmission.

@greg_travis @TRyanGregory 这并没有说明环绕学校并阻止传播的超自然力量。

@pamonly24 @TRyanGregory It's more like the inverse precautionary principle. Treat every threat as the best case until proven otherwise.

@pamonly24 @TRyanGregory 这更像是逆预防原则。将每个威胁都视为最好的情况，直到证明并非如此。

@protosphinx @jcawley01 @Josh_Young_1 @JoeBiden Price isn't that different either. It hit $86 in 2018.

@protosphinx @jcawley01 @Josh_Young_1 @JoeBiden 价格也没有什么不同。它在 2018 年达到了 86 美元。

@Poppendieck Oh, okay. I've never seen that.

@Poppendieck 哦，好吧。我从来没有见过。

@BrianFlaherty10 @LazarusLong13 It's coming down on the right side of the photo

@BrianFlaherty10 @LazarusLong13 它在照片的右侧下降

@LazarusLong13 @D_Bone The Nordic Pure gives you lower CADR but also lower cost. Both seem like reasonable options. The Lennox is carbon coated which might help with odors (or might be worthless in practice, I don't know). It also might last longer.
https://twitter.com/sri_srikri...

@LazarusLong13 @D_Bone Nordic Pure 为您提供更低的 CADR，但也降低了成本。两者似乎都是合理的选择。 Lennox 是碳涂层的，可能有助于消除异味（或者在实践中可能毫无价值，我不知道）。它也可能持续更长时间。
https://twitter.com/sri_srikri...

@Poppendieck I don't understand how the second one could be correct. What does the H in ACH indicate if not (per) hour?
2.1 /h AC could possibly be correct but no one would recognize it.

@Poppendieck我不明白第二个怎么可能是正确的。如果不是（每小时），ACH 中的 H 表示什么？
2.1 /h AC 可能是正确的，但没有人会认出它。

@LukeGromen @rjunkapoor I'm not sure it's really printing when they sold at $100 and replenished at $75.

@LukeGromen @rjunkapoor 我不确定当它们以 100 美元的价格出售并以 75 美元的价格补货时它是否真的在印刷。

@TweetAddictus @davidmweissman Correct, he got booed.

@TweetAddictus @davidmweissman 正确，他被嘘了。

@Lujan588 @phealthsean I heard that in areas where nobody was interested in masks they had good inventory and good selection (even including individual wrapped Aura) for months. Which speaks to the poorly run nature of the program. Masks didn't get to people who wanted them.

@Lujan588 @phealthsean 我听说在没有人对口罩感兴趣的地区，他们几个月来都有很好的库存和很好的选择（甚至包括单独包装的 Aura）。这说明了该程序运行不佳的性质。口罩没有送到想要它们的人手中。