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

1、

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。

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2、

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。

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3、

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。

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4、

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.

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5、

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。

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6、

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。

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7、

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。

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8、

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。

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9、

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。

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10、

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。

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11、

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）。

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12、

the brightness of its light ball only parts per million, and only in the total solar eclipse or with a special instrument to see the corona.

它的亮度仅为光球的百万分之一，只有在日全食时或用特制的日冕仪才能看见。

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13、

sometimes, yeah, but you also sit around twiddle your thumbs a lot, too. oh, that's bull.

有时，是的，但你许多时候也是无所事事的。哎，胡说八道。

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14、

improvement of core line frequency induction furnace for hot - dip galvanizing steel pipe

热镀锌钢管用有芯工频炉的改进方法

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15、

approach to small - scale coreless line - frequency induction furnace without runout alarm system

小型无芯工频炉不设漏炉报警的探讨

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16、

common damages and prevention measures of macadam foundation stabilized by cement

水泥稳定碎石基层的常见病害及防治措施

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17、

quality supervision and control of ash-lime-bound macadam foundation construction

二灰碎石基层施工质量监理控制

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18、

compactness examination on cement stabilized macadam foundation

水泥稳定碎石基层压实度检测

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19、

the construction techniques for the cement stabilized macadam foundation

水泥稳定碎石基层施工工艺

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20、

causes of crevices in diad ashes macadam foundation layer and its preventive measures

二灰碎石基层裂缝的原因及防治措施

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