envelope test

基本解释

This paper analyses the difficulty in potentiometers' Contact Resistance Variation(CRV) test, and introduces an effective test method-Qarsi-Envelope Test Method(QETM).
本文分析了电位器接触电阻变化率（CRV）测量的难点，提出了一种行之有效的方法——准包络测量法。
Introduce Hi-pot test into ultra-thin laminate test envelope to research the influence of test condition, design a set of Hi-pot test instrument available for ultra-thin laminate.
在超薄覆铜板的测试项目中引入耐电压测试，设计了一套符合覆铜板特点的耐电压测试装置，借由这套装置开展了对耐电压测试条件和影响因素的研究。
The international technology actuality of flight test in height-speed envelope and the essentiality of the technology are introduced in this paper.
本文介绍了“回避区”飞行试验技术现状和回避区飞行试验技术的重要性，提出了进行回避区飞行试验的程序和内容。

So far, the company has built a one-eighth-size prototype to test its design, which consists of a carbon-fibre keel, an envelope made from modern composite materials, half-a-dozen engines, a passenger compartment, and a specially lightened crane.
ECONOMIST: Pushing the envelope