以下为句子列表：
英文: An experimental study on the aerodynamic characteristics of New Concept Car is conducted by model wind tunnel test, covering the pressure coefficient and wake vortices on longitudinal symmetry plane, as well as aerodynamic forces and moments under differe
中文: 摘要用模型风洞对新概念车在不同横摆角下纵对称面上压力系数、整车气动力和气动力矩的变化以及纵对称面尾部流态分布进行了试验研究。
更详细...
英文: Because wake vortices can persist in calm air for several minutes (extending for as far as eight miles), the Federal Aviation Administration requires minimum distances between aircraft, based on size.
中文: 机尾涡流可以在无风的空气中停留几分钟，向后延伸达12公里，所以美国联邦航空总署按照飞机大小而规定了飞机之间的最小安全距离。
更详细...
英文: Continuum Dynamics and Boeing go further by introducing “active forcing” of the vortices to induce a wobble, or “waviness,” into the flow to hasten breakup even more, dissipating it in perhaps 1.5 to two nautical miles.
中文: 连续体动力学公司与波音公司则更进一步，以主动形成的涡流在机尾乱流中诱发晃动，或曰「波动」，使机尾乱流溃散的速度更快，也许只会绵延1.5~2海里（约2.8~3.7公里）。
更详细...
英文: Engineers are working on ways to detect hazardous wake vortices so pilots can avoid them or to design aircraft that leave safer skies behind them.
中文: 工程师正在研究，想找出有效的点子，侦测危险的机尾涡流，或设计不会危及后方空域的安全飞机。
更详细...
英文: Even though black holes are dark and invisible, it doesn't mean they have no effects, or extremely strong vortices and they pull matter in these swirling winds around them a lot like a tornado.
中文: 即使黑洞不发光、无法看到，它仍然会留下痕迹：它会产生极强的、将物质卷入其中的、象龙卷风一样的涡流。
更详细...
|
