Lifting and handling. Welded joints. Part 2: weld quality classes. Extent of the non-destructive testing.

提升和搬运。焊接接点。第2部分：焊接质量等级。无损检测范围。

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Having taught in Senior Three for many years, he has made great achievements in maths teaching and won many awards for his high quality classes.

多年带毕业班，教学成绩突出，多次获得优质课一等奖。

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Intelligent evaluation model for air quality based on C4.5 decision tree algorithm is established through the historical data of air pollutants and air quality classes in this article.

本文采用C4.5决策树算法构建空气质量评价系统，挖掘空气污染物和空气等级关系的历史数据，建立空气污染物-空气等级智能评价模型。

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Meanwhile, the fraction of respondents that favor commodities and high quality bonds over other asset classes fell further to 7% and 10%, respectively.

FORBES: Barclays Investor Survey: Risk On, Or Risk Off?

To qualify for "highly-trusted" status, an institution has to demonstrate its teaching is of a sufficient quality, its students regularly attend classes, and that it complies with a range of other factors.

BBC: Harvinder Kaur

Such an overly simplistic conclusion implies that Treasuries exist in a vacuum, without taking into consideration fund flows between asset classes and between instruments of different credit quality.

FORBES: Downgrade Follies