The plastic envelope must be kept intact in the course of installation and usage.

在安装使用过程中，不能把塑封套弄破。

The officer removes a hard object that turns out to be a plastic envelope containing burglar's tools.

警察从他身上搜出一个硬东西，结果是装了盗窃工具的塑料包。

A prepaid plastic recycling envelope is included in the box, making it easy to recycle your newly obsolete phone.

盒子内包含了一个预付的可回收塑料封盖，让其可方便回收你刚废弃的手机。

So you just opened an envelope that contained a shiny piece of plastic with your name on it.

所以，你刚打开一个信封，包含有光泽的一块塑料您的姓名。

You will receive an envelope with a plastic card and your PIN number enclosed in just a few days.

几天后你就会收到一个信封，内有一张塑料卡和个人密码。

In this paper, we propose to measure the beam envelope by a thin plastic scintillation filament.

本文提出用闪烁丝测量束流包络，从而求出粒子流真实发散度的方法。

The liquefaction front, originating from the envelope of initial effective stress points, gradually approaches the failure line as the cyclic mobility proceeds as a function of plastic shear work.

液化面作为累积剪切功的函数，从初始应力点的包络线开始，随着循环活动性的进行，逐渐接近破坏线。