primary meter

Mainly introduces the manufacture of the EN anemography data processing meter simulation signal generator, including its constitution, electricity schematic diagram and concrete primary device;

主要介绍EN型测风数据处理仪模拟讯号发生器的制作，包括其构成、电原理图及具体元器件；

The E-ELT's gigantic 39-meter-wide primary mirror will capture 15 times more light than any existing optical telescope, and its images should be 16 times sharper than the Hubble Space Telescope's.

这台宽为39米的大家伙，其主镜聚光能力是世界上现有最清晰的光学望远镜的15倍，形成的图片是哈勃望远镜的16倍。

the meter is devided into two parts: the primary meter (detector) and the secondary meter.

该仪器分为一次表（探头）和二次表两部分。

The Primary Study on the Field Calibration of Neutron Soil Moisture Meter

中子仪测定土壤湿度田间标定方法初探

Moisture Meter in Tobacco Primary Section

水分仪在烟草制丝过程的应用