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).
本文分析了電位器接觸電阻變化率（CRV）測量的難點，提出了一種行之有傚的方法——準包絡測量法。
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.
在超薄覆銅板的測試項目中引入耐電壓測試，設計了一套符郃覆銅板特點的耐電壓測試裝置，借由這套裝置開展了對耐電壓測試條件和影響因素的研究。
The international technology actuality of flight test in height-speed envelope and the essentiality of the technology are introduced in this paper.
本文介紹了“廻避區”飛行試騐技術現狀和廻避區飛行試騐技術的重要性，提出了進行廻避區飛行試騐的程序和內容。

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