1·The objective is to explore the roles of color Doppler vena contracta in the evaluation of mitral regurgitation grading.
目的是探讨彩色多普勒静脉收缩术在评估二尖瓣反流分级中的作用。
2·So naturally cracks are a key factor inprocessing and grading table eggs.
很自然，裂缝是加工鸡蛋和给鸡蛋分级时的关键因素。
3·The trouble, say critics, is the combination of strict grading with an overloaded timetable and a focus on learning through failure.
评论家说，麻烦是严格的分级和重载时间表与在失败中学习的结合。
4·If a professional grading system existed, executives would never settle for a D- in their careers.
如果有专业的分级制度，经理人们永远不会满足于在职业生涯中获得D。
5·Assignments and grading criteria don't mention any penalty or reward for clear, readable, well-written code.
分配和标准分级没有谈到任何惩罚或者对干净的、易读的、有条理的代码的奖励。
1·"The Grading of the Qualification of Tourist Automobile Companies and Its Criteria";
《旅游汽车公司资质等级划分及评定标准》；