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parts per million

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un.百万分之一；百万分之几；百万分率
网络每百万不良数；百万份之；每百万单位

parts per million

英-汉网络释义

parts per million

百万分之一

单位换算 ... （0.1013MPa）立方米体积的干空气的质量。（parts per million） 百万分之一 (Fahrenheit) 华氏温标 ...

百万分率

缩略词词汇表 ... 降凝剂( pour point depressant) 百万分率( parts per million) 聚邻苯二甲酰胺( Polyphthalamide) ...

百万分之几

航海及海运专业术语P(2) ... parts per million 百万分之……百万分之几 parts per million 百万分之几 parts per million 兆分率 ...

每百万不良数

关于spc的专业名词 ... 不良数 Number of Defectives 每百万不良数 Parts Per Million;ppm 不在管制状态下 Out of Control ...

百万份之

中文/... ... p.p.m. pieces per minute 每分钟件数 parts per million 百万份之(几) PPS polypropylene sebacate 癸二酸聚丙烯酯 ...

每百万单位

ppm表示－每百万单位（parts per million）。在用作表示频率偏差时，它表示在一个特定中心频率下，允许偏差的值，频率以 …

不良率

QC-QA-QE间的区别 - 豆丁网 ... Parts 零件 Parts per million 不良率 Passive 消极的,被动的 ...

例句：

The rice has some of the highest iron concentrations that have been described for white rice (up to 19 parts per million ).

这种水稻是白米铁含量最高的（高达百万分之 19 ）。

So designers all over the world can analyze their products down to the parts per million for human and ecological health .

全世界的设计师将能微量分析他们的产品，以照顾人类及生态健康。

She sent the bridge in question to a scientific testing laboratory , and its surface allegedly tested at 160 parts per million of lead.

她将在成绩的桥送到一间迷信的测试实验室了，而且它的外表听说经过了多种测试。

Now , the same mouse is given 80 parts per million hydrogen sulfide in this solid graph , and look what happens to its temperature .

现在，还是同样一只老鼠，同样是这个图，给空气中注入百万分之八十硫化氢，观察它的体温变化。

A handful of dirt from your backyard would probably contain a smidgen , maybe a few parts per million .

你家后院里的一把泥土可能含有一点点，也许是百万分之几。

The sensitivity of modern analytical apparatus has lowered some detection thresholds past parts per million , down to parts per billion .

现在的分析设备的灵敏度已经降低了一些检测限，高至百万分率，低至十亿分率。

The range is normally expressed in the same units as test results (e. g. percent parts per million) obtained by the analytical procedure.

该范围通常以与该分析规程得到的测试结果相同的单位表示，例如百分比，百万分率等。

Hitherto diesel contained up to 500 parts per million (ppm) of sulphur , but the new rules limit sulphur to 15 ppm.

目前，柴油中硫含量为 500ppm ，但新规定将其限制在 15ppm 。

For swimming pools using ozone for disinfection , ensure that the water should contain not less than 0 . 5 Parts per million of chlorine .

如泳池使用臭氧消毒，应确保池水的氯含量不少于百万分之 0 .

Ian Hutcheon: If you go out on the beach and pick up a handful of sand it contains about 4 parts per million of uranium .

伊恩 ·哈钦：如果你在沙滩上随便抓一把沙，其中大约会含百万分之四的铀成分。

The measurement amounts to the neutrinos travelling faster than the speed of light by a fraction of 20 parts per million.

这些测量结果意味着中微子的速度要比光速快五万分之一。

With atmospheric carbon concentrations rising towards 400 parts per million concerns about climate change will not go away .

随着大气中的碳浓度接近 400ppm ，人们对于气候变化的担忧将不会消失。

350 's ultimate goal is to achieve global action to lower the concentration of carbon dioxide in the atmosphere to 350 parts per million.

350 的终极目标是要把全球温室气体浓度削减至 350ppm 二氧化碳当量。

Its 95 -megapixel camera , the largest ever launched into space, can detect tiny changes in a star's brightness of only 20 parts per million .

拥有迄今为止最大分辨率 ——0.95亿像素的太空相机，开普勒能够发现星光低至百万分之 20 的极微弱变动。

A commonly cited goal is to stabilize GHG concentrations around 450-550 parts per million (ppm), or about twice pre-industrial levels .

一个共同的目标是使温室气体在空气中的浓度稳定在 450-550ppm （注二），或者大约两倍于工业化前的水平。

Current methane concentrations in the Arctic average about 1 . 85 parts per million , the scientists said , the highest in 400, 000 years.

目前在北极地区甲烷浓度平均为大约百万分之 1.85 ，科学家们说，这是 40万年中的最高水平。

Before the industrial revolution the air contained about 280 parts per million of carbon dioxide .

工业革命前空气中二氧化碳含量为百万分之 280 今天已经上升到百万分之 358 。

Last week Lord Stern suggested that meeting a less stringent target (500 parts per million) would cost 2% of world gross domestic product .

上周，斯特恩爵士表示，只符合宽松些的目标（500ppm ）将消耗世界国内生产总值的 2%（9 ）。

A normal amount of CO in your blood is extremely low -- zero to eight parts per million .

血液中 CO 普通含量相当低 ——零至百万分之八。

If the Earth reaches 800-1000 parts per million , as the worst-case scenarios predict, it's really anybody's guess .

如果二氧化碳的排放量达到百万分之 800-1000 ，正如人们猜测的，那将是最坏的情况。

The EPA regulates wastes containing 50 (parts per million ) ppm PCBs and greater .

美国环保局规定的废物含有 50 （百万分之一），多氯联苯和百万分之多。

Concentrations in sunlit soil might average about 1 , 000 parts per million, the equivalent of roughly a quart of water per ton of material .

可以对平均百万分之一千的受阳光照射土壤进行压缩，相当于每吨物质中包含一夸脱的水。

So we've designed products and we analyzed chemicals down to the parts per million.

因此当我们设计出了产品，我们微量分析其化学成份。

Roughly speaking , every 30 billion tons of emissions raises CO2 levels by around two parts per million (ppm ).

大致说来，每 300亿公吨的排放会使二氧化碳浓度升高百万分之二（2ppm ）。

Reportedly , the environmental activist group found that Herbal Essences contained 24 parts per million (ppm) of 1 , 4-dioxane .

据报道，环保活动家小组发现草本精华液里含有百万分之二十四的 1,4-二氧六环。

The amounts the OCA found were as high as 97 . 1 parts per million, in a dish liquid .

亚奥理事会发现在一碟液体中 1,4-二恶烷的含量高达百万分之 97 .

parts per million

parts per million

百万分之一

百万分率

百万分之几

每百万不良数

百万份之

每百万单位

不良率

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