中英互译
parts per million (ppm)
基本释义
- 百万分之一
双语例句
- The level of carbon dioxide in the atmosphere is measured in parts per million (PPM).大气层里二氧化碳含量的测量单位是ppm，即一百万体积的空气中所含二氧化碳的体积数。
- 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。
- 23 out of 28 products – 82 percent – contained formaldehyde at levels ranging from 54 to 610 parts per million (ppm).28件产品中的23件 - 82% - 甲醛含量在54至610百万分率(ppm)之间。
网络短语
- parts per million ppm百万分之几
- PPM - Parts Per Million百万分之
- parts per million control ppm妨害
- PPM- Parts Per Million百万分之
同义词
百万分之一