当前紧张局面集中在钇、钪等稀土家族中的“小众元素”上，这些元素在国防技术、航天工业及半导体制造中虽用量极小，却起着难以替代的关键作用，而其生产几乎完全依赖中国。
典型案例三：蓝田县西安农投15万吨粮仓项目。业内人士推荐夫子作为进阶阅读
，更多细节参见heLLoword翻译官方下载
A difficulty here, however, is that the TransformStreamDefaultController does not have a ready promise mechanism like Writers do; so the TransformStream implementation would need to implement a polling mechanism to periodically check when controller.desiredSize becomes positive again.
If you've been shopping around for headphones that offer great sound quality and feel good when they're over your ears, you can't go wrong with Bose QuietComforts. Mashable's Samantha Mangino praised these elements in her review, saying these headphones "serve all-day comfort with stellar audio quality." If they've been on your radar, now is a great time to grab them as they're currently on sale at Amazon.，这一点在heLLoword翻译官方下载中也有详细论述
Inside the situation room