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

1、

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。

互联网摘选

2、

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。

互联网摘选

3、

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。

互联网摘选

4、

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。

互联网摘选

5、

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。

互联网摘选

6、

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）。

互联网摘选

7、

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。

互联网摘选

8、

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。

互联网摘选

9、

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

互联网摘选

10、

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

互联网摘选

11、

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

互联网摘选

12、

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

互联网摘选

13、

compactness examination on cement stabilized macadam foundation

水泥稳定碎石基层压实度检测

互联网摘选

14、

the construction techniques for the cement stabilized macadam foundation

水泥稳定碎石基层施工工艺

互联网摘选

15、

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

互联网摘选

16、

relationship of chemical composition of vertebrae thorn and physical maturity of chinese yellow cattle

中国黄牛生理成熟度与脊椎棘突化学组成变化关系的研究

互联网摘选

17、

people with this frequently lack spiritual and physical maturity.

这种鼻型的人时常在精神和身体方面表现不够成熟。

互联网摘选

18、

anatomic characteristics and clinical significance of the sustentaculum tali of calcaneus

跟骨载距突的解剖特点及其临床意义

互联网摘选

19、

an anterior open-bite splint (10) provides an intrusion force to posterior teeth to aid in correcting anterior open-bites.

一种前开合夹板（10）向后牙提供了向内突入力，以协助矫正前开合。

互联网摘选

20、

fig3-7 mouth-breathing child lying down. note the anterior open bite as well as the short maxillary lip with a median crease .

图3-7口呼吸的儿童躺下样。可以注意前牙开咬与短的上唇且有一中间皱褶。

互联网摘选