The secondary outcome measures are cardiovascular events, quality of life, costs and incremental cost effectiveness ratios.

二次结果的措施心血管事件，生活质量，成本和增量成本效益比率。

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The secondary leading edge is further designed to hide in the wake of the primary leading edge at higher speed ratios.

次前缘还被设计以在更高速比时跟随在 主前缘后隐藏。

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Yet in terms of enrolment, sub-Saharan Africa has made the greatest gains of all regions, with gross enrolment ratios rising from 28% to 43% for lower secondary and from 20% to 27% for upper secondary education between 1999 and 2009.

UNESCO: World Water Assessment Programme (WWAP)