ppm音标
英 ['pi:p'i:'em]
美 ['pip'i'em]
ppm翻译
abbr.
part per million 百万分之…;
英英释义
PPM
PPM is an initialism that can refer to any of the following in this list:
以上来源于:Wikipedia
ppm用法
权威例句
70 000 PPM-sparare flyttas till statliga Såfan
Implementing the PPM data compression scheme
Unbounded length contexts for PPM
Pensionsmyndigheten slänger ut PPM-jätten
A 2-V 23-μA 5.3-ppm/°C curvature-compensated CMOS bandgap voltage reference
The inflammatory effects of 2 ppm NO2 on the airways of healthy subjects.
A 2-V 23-/spl mu/A 5.3-ppm//spl deg/C curvature-compensated CMOS bandgap voltage reference
Performance evaluation of TH-PPM UWB systems in the presence of multiuser interference
Role of accurate mass measurement (+/- 10 ppm) in protein identification strategies employing MS or MS/MS and database searching.
Parametric drive of a toroidal MEMS rate integrating gyroscope demonstrating < 20="" ppm="" scale="" factor="">