由于这两类人群的健康结果受到许许多多因素的左右，所以有效的措施是提高世卫组织的整体绩效。
Because so many factors shape health outcomes in these two groups, improvements are a good measure of the overall performance of WHO.
他最新的发明是一个以19世纪思想基础上的发电机——一类异常高效的发动机——尽管从未流行起来。
His latest invention is an electrical generator based on a 19th-century idea-an unusually efficient kind of engine, called a Stirling engine-which never caught on.
考古队称现场的碎片规格、形状十分类似17世纪的小型金属枪。
The team said that the size and shape of the pieces looks very similar to the small iron guns of the 17th century.
应用推荐