parts per million
英 [pɑːts pə(r) ˈmɪljən]
美 [pɑːrts pər ˈmɪljən]
网络 百万分之; 百萬分之一; 百萬分率; 一百万分之一; 百萬分之
双语例句
- 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。 - Earlier this year carbon dioxide levels reached 400 parts per million.
今年早些时候，二氧化碳水平达到每百万400单位。 - Alloy steel heats are vacuum-treated on degassing units to reduce hydrogen contact to less than two parts per million and reduce metallic oxides.
合金钢热是在脱气装置下进行真空处理，以将氢接触减少到百万分之二以下，并减少金属氧化物。 - The rice has some of the highest iron concentrations that have been described for white rice ( up to19 parts per million).
这种水稻是白米铁含量最高的（高达百万分之19）。 - The term parts per million was widely used but frequently led to misinterpretation.
广泛使用百分之几表示结果，但常常引起误解。 - In any case, the0.4 parts per million limit on mercury does not apply to dolphin meat, and there are no plans to strengthen the guidelines, officials said.
在哪一种情况下，0.4/百万对汞含量的限制对于海豚肉不实用，也没有办法加强限制，官员们说。 - A concentration of only five parts per million.
仅为百万分之五的浓度。 - The rubble that coalesced to form Earth contained trace amounts tens to hundreds of parts per million of the stuff.
接合起来而形成地球的石块中含有微量的水，含量从几十ppm到几百ppm不等。 - Bacon said depending on the region of Western Canada, the peas generally can contain less than the0.3 parts per million tolerance level while in other parts it is above that level.
Bacon说在加拿大西部，跟据地区的不同，豌豆通常只含比耐受水平百万分之0.3低的硒元素，而有的地区则会高于这个水平。 - The amounts the OCA found were as high as97.1 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97.1。 - The aggregate concentration of carbon in the atmosphere is now up to 380 parts per million having risen by 1.9 ppm per annum during the past 10 years.
过去10年间，大气中的碳浓度以每年1.9ppm的速度上升，目前累积浓度已达到380ppm。 - 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。 - But the Consumer Product Safety Commission has just lowered the limit to ninety parts per million.
但是消费者安全产品委员会将其降低限制到90ppm。 - In2006, the FDA established a lead limit of0.1 parts per million ( ppm) in candy, based on the level the agency believed to be the lowest achievable.
2006年，FDA对糖果中铅的含量上限设定为百万分之0.1，基于这个标准的基础上这个机构相信这是最低含量。 - 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。