ppm.
英
美
[医] 兆比率(百万分之几)
双语例句
- With certain exceptions, it now prohibits the sale of a packaging with a total concentration of lead, cadmium, mercury plus hexavalent chromium that exceeds 100 ppm.
某些例外，禁止出售一种包装，以总浓度铅、镉、汞六价铬超过100分之多。 - If a bay is inclined to the general line of the base at an angle of 10 mm in 24m, the error will be 0.1 ppm.
如果一个尺段偏离基线总方向的角度相应于24米距离上的10毫米，则误差为0.1×10-6。 - You are like a star six mans star, always sending out unique ray, let me feel unreachable, beautiful count dracula are not your PPM.
你就像一颗六芒星，永远散发着独特的光芒，让让我觉得可望不可及，唯美的吸血鬼伯爵也不及你的万分之一。 - This paper expounds the connotations of the ppm, analyzes on the necessity of carrying out the ppm, and introduces some common methods for the ppm.
阐述了路面预防性养护的含义，分析了道路预防性养护作业的必要性，介绍了常用的路面预防性养护手段。 - The molybdenum contents in all samples were normal and below the toxic level of 6 ppm.
钼的含量正常并低于中毒量6mg/kg。 - Referring to the standard of American and Europe, the indoor concentration of CO2 limit is 1000 ppm.
参考欧美等国家和地区的标准，室内CO2浓度的允许值取为1000ppm。 - A microprocessor-based electrocardiogram simulator for the testing and evaluation of ECG instruments can be programmed to generate more than 20 waveforms at heart rates from 1 to 199 ppm.
本文报导了一种用微处理器控制的可编程心电模拟装置，可输出心率范围从1至199次/分的20多种波形的信号，用于测试和评价心电图仪器。 - Measured the critical value of Cl tolerance by the yield and quality, it is 800 ppm.
从产量和品质综合衡量，红麻的耐氯临界值为800ppm。 - The sensitivity of the method is 0.02 ppm.
本方法的灵敏度为0.02ppm。 - The critical value of available P for rice grown in purple soil is 6.1 ppm.
紫色土上有效磷对水稻的临界指标为6.1ppm。 - The dietary optimal Mn level of ducklings was reasonably recommended to be 110 ppm.
综合试验结果考虑，雏鸭饲粮锰适宜水平为110ppm。 - Similar results have been obtained using spermidine of 10 ppm.
10ppm亚精胺有相同结果。 - With DO concentration ranging from 0 to 8 ppm, the response of sensor to DO has very good linearity in both tap water and 3% NaCl solution, and the error of the sensor is less than ± 0.4 ppm.
在自来水与3%的氯化钠溶液中、0到8ppm的溶解氧浓度范围内，本传感器具有良好的线性响应，误差不超过±0.4ppm； - The content of germanium absorbed and accumulated in Panax ginseng cultured cells was about 8~ 17 ppm.
人参培养细胞吸收和积累的锗量很少，约8～17ppm。 - The most effective concentration of bee royal jelly is about 400 ppm.
比较合适的蜂皇浆浓度是400ppm左右。 - The concentrations of gibberellin are 0 ( control), 40 and 80 ppm.
赤霉素的浓度为0（对照）、40和80ppm。 - Sensitivity of the method is 0.1 ppm.
方法灵敏度可达0.1ppm。 - After that this thesis introduces the processes of PPM.
在理论之后，介绍了项目组合管理的一般过程。