Effects of interstitial oxygen on <math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si74.svg" display="inline" id="d1e617" class="math"><mi>ω</mi></math> transformations and twin formation in bcc NbTaTiHf multi-principal element alloy from first-principles

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与两年前不同,这辆无人驾驶出租车的驾驶座上,不再有监督员。驾驶过程中,方向盘自顾自地旋转,礼让行人,保持车距,转弯减速让行,文明得令人汗颜。稍有不太便捷之处,则是在落客时,车辆只能生硬地停靠在地图上约定的地点,乘客难以跟其“商量”能否停靠在更方便的落客区。

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同时,研发人员的平均值持续增长,中位数则在波动中下滑,这一现象再次呼应“整体扩张、结构分化”的特征。也就是说,研发人才作为核心战略资源,与研发资金一样具有强烈的“马太效应”,都向技术雄厚、资金充足的头部企业集中。