ppm

ppm怎么读

英式音标：[\'pi:p\'i:\'em]

美式音标：[\'pip\'i\'em]

ppm的意思释义

abbr.

part per million 百万分之…；

英英释义

PPM is an initialism that can refer to any of the following in this list:

ppm用法及例句

例句参考

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 stability