查询词典 descent

On descent from 12,500 feet noted echoes on radar 60 deg green to abeam his plane.

出身于一点二五○万英尺指出雷达回波上60度绿色对开他的飞机。

The dynasty legitimized its rule over former Achaemenian territories by claiming descent from the Achaemenian king Artaxerxes II.

该王朝自称是阿契美尼德王朝的国王阿尔塔薛西斯二世的后裔，所以应合法统有阿契美尼德旧有的领土。

This research shall be obtain that ocean-sand motor shall have more compressive strength early, but later strength shall descend, by means of non-standard sand mixing sample is quite obvious. By means of 50% ocean-sand substitutes for river-sand to mix fine aggregate compressive strength early shall be risen 20%~30%; Adds slag to ocean-sand or a half of river-sand and ocean-sand to make motor test sample, Compressive strength、bending strength and tensile strength shall be according to slag additament, by means of. slag add itament substitutes for cement 40%~60% is most. But slag be able to substitute for cement is too enough, 1ater strength shall be descent.

由本研究可得知海砂拌和的水泥砂浆，其早期抗压强度较高，而晚期强度则有下降的趋势，其中以非标准砂拌和效果最为明显；若以50%海砂替代河砂做为拌和细骨材，其早期抗压强度约上升20%~30%；添加炉石於海砂或河砂、海砂各半的水泥砂浆，其抗压、抗弯及抗拉强度，会随著炉石添加量增加而增加，其中以40%~60%炉石替代量为最佳，但是炉石替代量过高，晚期强度会下降；在相同水灰比状况下以海砂拌和水泥砂浆做比较，以非标准砂拌和有较高的抗压强度，其强度约比标准砂高10%左右。

The Frechet derivative of the cost function is determined via the solution of an adjoint partial differential equation, and the boundary shape is then modified in a direction of descent. This process is repeated until an optimum solution is approached. The advantage is that the cost function variation is independent of the flow field variation, with the result that the gradient of cost function with respect to arbitrary number of design variables can be determined without the need for additional flow-field evaluations. So each design cycle requires the numerical solution of both the flow and the adjoint equations leading to a computational cost roughly equal to the cost of two flow solutions.

虽然他们的研究成果大多数都可以在公开性文献上看到，但是其中一些具体的细节问题的处理方法却没有透露，比如：伴随方程如何离散求解才能减小最终梯度计算中的误差，使得设计过程有效地进行；伴随方程与流动方程的边界条件是不同的，如何合理地处理伴随方程的边界条件，才能推动设计过程朝着设计目标而发展；在减阻问题中目标函数如何定义，求解梯度的具体数学公式如何推导，如何通过数值方法来实现它们等。

She was the first woman of African-American descent to do so.

而后来，她开始了音乐事业方面的追求。

Pan Africanism is both a belief in the innate unity of all Africans and usually also people of African descent overseas and a political movement that seeks an united Africa.

泛非洲主义是所有非洲人所持有的一种内在统一的信念，通常也指海外的非裔后代寻求一个统一的非洲的政治运动。

The only scary part was the 2 or 3 raps at the start of the descent. I had the haul sack on my back and didn't anticipate what the extra weight would do to my center of gravity or my ability to control my descent using a Figure 8. I went down really fast; almost out of control.

其中比较可怕的部份是开始后第二三次下降，我得背起拖包，而且无法预先处理这多的重量影响我的重心及用八字环下降的能力，我下降得很快，几乎无法控制。

Both a Will and an Adoption threaten a distortion of the ordinary course of Family descent, but they are obviously contrivances for preventing the descent being wholly interrupted, when there is no succession of kindred to carry it on.

遗嘱&和&收养&都威胁着要歪曲&家族承袭的正常进程，但当亲族之中没有人能继承的时候，它们显然都是避免承袭的完全中断的手段。

He has been expedition photographer on various river expeditions including the first descent of the Great Bend of the Yang-tze River in China and the first western descent of the Bashkaus Riv ...

他一直在各河野外探险摄影师出身的包括第一弯的伟大长江流域中西方血统的第一bashkaus水下地形和水流

Cage's mother is of German descent and his father is of Italian descent (his paternal great-grandparents were immigrants from Bernalda , Basilicata ).

斯凯奇的母亲是德国血统，他的父亲是意大利后裔（他的父亲大祖父母移民Bernalda ，巴西利卡塔）。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。