Photo Gallery: Azurite crystals from Arizona seem to pulse with color.矿物的图片集.蓝铜矿的结晶来自亚利桑那州好像添加彩色.Azurite's brilliant color adds to its popularity in creating semiprecious stones.兰铜矿灿烂的色彩加上它的声望造成准宝石的宝石.Limited compan...
在即将到来的选举中，我们将面临一场恶斗。We'll face a tough fight in the upcoming election.总统即将结束对索马里的访问。The President is about to wind up his visit to Somalia.他一定已经知道我父母的婚姻即将破裂。He must have been aware that my parents' marriage was...
哈!我是这么勇敢, 瞧我失速的样子多衰.I'm so brave, at how well I'm stalling.但是,系统的“危险”响应频率强烈地依赖于其旋转失速的传播频率.But the resonant response frequency strongly depends on the frequency at which the stall cell rotates.桨叶气动力计算采用时域非定常空气动力...