减

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。

Companies to develop high-tech production and operation of new building materials mainly products are all kinds of concrete admixture of Masterbatch superplasticizer.

公司以开发生产经营高科技含量的新型建材为主，主要产品是各种混凝土外加剂的母料减水剂。

We still have special evaluation group, be in charge of technically adding cent to reduce cent to the card, can promote the hair post initiative of the member so, also can undertake admonitory to violating compasses card.

我们还有专门的评审团队，专门负责给帖子加分减分，这样能够促进会员的发帖积极性，也能对违规帖子进行警告。

In order to eliminate the disadvantage of manufacture sand, we adulterate it with high-efficiency, water-reducing agent and fly ash.

为了消除机制砂混凝土的不利因素，采用掺加高效减水剂和粉煤灰来提高混凝土的性能，并与天然砂混凝土进行比较。

Liquor-making enterprises in Sichuan had suffered great loss from May.12 Wenchuan Earthquake. The main reasons for distilleries' loss were analyzed and the following recommendations were put forward for the reconstruction and the restoration of the damaged distilleries: 1. layout design of workshops strictly followed relative national requirements and anti-earthquake grade of key workshop enhanced advisably; 2.the techniques of shock isolation, shock absorption and shock prevention etc. should be applied in...

在5·12汶川大地震中，四川白酒企业遭到了重大损失，分析了其主要原因，并建议白酒厂在新建、改建、扩建时满足以下条件：①严格按照国家有关规范中规定设计，对重点车间适当提高设防等级；②逐步将隔振、减振、制振等技术应用到白酒厂房屋设计与生产设备安置中；③贮存容器安置要科学合理，并采取适当的保护措施，大型贮存容器的设计要考虑底部抗压问题，以防止次生灾害的发生。

In this paper, the authors carried out an exhaustive investigation into the influence of shape of afterbody of large full ship on resistance, propulsion and wake from the angle of energy-saving and vibration-reducing.

本文从节能和减振的角度出发，探讨肥大船后体形状对阻力、推进及伴流的影响。

Afterburning today, by tomorrow, and only original rock.

今日加力，明日减力，只能在原处晃荡。

Weight loss of 1 to 2 pounds a week may seem like an agonizingly slow pace, but if improving your health is a long-term goal, the speed of your weight loss isn't important.

每周只减一两斤也许是一个让人苦闷的缓慢的过程，但是如果增进健康是你的长期目标，那么减肥的速度就不太重要了。

The results approved the structure design and damping design of air filter,and provided theoretical basis for vibration test.

通过分析，证明空气净化器结构设计和减振设计的合理性，并为进一步试验测试打下理论基础。

The results approved the structure design arid damping design of air filter, and provided theoretical basis for vibration test.

通过分析，证明空气净化器结构设计和减振设计的合理性，并为进一步试验测试打下理论基础。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。