An internal heating type was adopted Which saves 30% energy in comparison with the external heating type.

用该催化板组装的反应器可采用内加热形式，和一般的外加热反应器相比可节约能耗约30%。

youdao

WZI type external heating vacuum evaporator is a kind of natural circulating evaporator operated under vacuum system.

WZI型外加热式真空蒸发器是一种在真空系统下操作的自然循环型蒸发器。

youdao

Numerical analysis is made for the unsteady and steady, two-dimensional laminar natural convection in an enclosure caused simultaneously by the external heating and a local internal heat source.

本文描述由一个局部内热源和外部加热同时作用引起的封闭空腔内非稳态、二维、层流自然对流换热的数值分析结果。

youdao

A123 points to a recent breakthrough with batteries that can work in a wide range of temperatures without the need for external cooling or heating.

FORBES: The Scoop Behind GM's New Electric Car

Instead of your heating system wasting energy and your money through constant and unnecessary use, your heating can be regulated and used far more sparingly with insulated internal and external walls.

FORBES: How To Winterize And Heat Your Home For Less

In low external temperatures, the battery is quickly brought up to operating temperature with the aid of an electric heating element.

ENGADGET: Visualized: Mercedes-Benz SLS AMG E-Cell bares all