concentrator

Concentrators in geological sciences elect either geology or geography.

主修地质学的学生要选修地质学或地理课程。

Biotron, Inc manufactures a wide range of standard and configure-toorder laboratory, research and production-scale fermentation systems. freeze dryer, speed vacuum concentrator and centrifuges.

她生产一系列的科研和工业化的发酵设备、冷干机、和离心机，也可根据客订单要求生产和开发设备。

A new kind of ferromagnetic collector type fiber-optic current sensor which combines a nubbly magneto-optic material with a ferromagnetic concentrator ring is designed in this paper.

设计了一种应用块状磁光材料与集磁环相结合的集磁式光纤电流传感器。