It's no doubt that data encryption is an indispensable step to ensure data's security in the open conditions of network transferring.
在网络传输的开放性环境下，对数据的加密处理无疑是保证数据安全的必要环节。
Assessing students'needs is an indispensable step in EGP (English for General Purposes) curriculum development, implementation and evaluation.
学习者需求分析是英语基础课程开发、执行和评价中不可或缺的组成部分。
Edge detecting is an indispensable step of computer vision. It is a important procedure of image preprocessing technology.
边缘检测是机器视觉中必不可少的环节，是一种重要的图像预处理技术。
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