不可或缺

Thus, in order to test the foreign language skills of our students, and their proficiencies in this field, we have used a systematic series of tests, based on the internationally recognized DELF test format and the results are presented as percentages.

身处全球化的现代人，外语能力是不可或缺的基本需求，为了测验学生外语能力及检验教学成果，我们采用测试标准一致，深具公信力的欧洲法语检定考试，将测验结果量化来做评估。

The significance of advertising,including its connotation and denotation,can be completely understood through the theories of semiotics.

广告作为商业活动不可或缺的媒介，有其重要的符号意义。

Polar bears are dependent on pack ice in the Arctic region for hunting, mating and building their dens.

北极地区的浮冰对北极熊而言是不可或缺的，因为那是它们觅食、进行交配和凿洞为巢的重要地点。

One of the important part of researching is to study the density distribution of it.

研究其密度分布是对它进行研究不可或缺的一部分。

Several kinds of hydrogen desiccation technologies for turbo generation are systematically introduced in this paper.

在氢气系统中加装干燥设备已成为降低湿度的一种必要手段，氢气干燥设备也逐渐成为一种不可或缺的电站辅机。

This is an indispensable tool for the development of single-chip microcomputer, the user can easily use happy.

详细说明：这是以单片机开发不可或缺的工具，用户可以轻松快乐的使用。

Results and Conclusion:In pharmaceutical production, deviation analysis is the necessary part in quality ass...

结果与结论：在药品的生产中，偏差分析是质量保证体系不可或缺的组成部分。

The dexterous use of irony is one of the essential highlights in the success of this novel.

反讽技巧的运用是这部小说成功不可或缺的重要亮点之一。

Muslims' dietetic culture is one of the indispensable component parts of Chinese dietetic culture.

清真饮食文化是中国饮食文化中一个不可或缺的重要组成部分。

In animal husbandry economy development of the long-term process, milk and milk food not only become an important part of Mongolian food, also become traditional custom, an important item in the etiquette, and in the daily life of the nomads plays dietotherapy role.

在畜牧经济的长期发展过程中，鲜奶及奶食品不仅成为蒙古族饮食的重要组成部分，也成为传统习俗、礼仪中不可或缺的重要物品，并且在牧民的日常生活中发挥着食疗作用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。