非有效的

Then the stability of nonparallel flow can be studied based on this characteristic of PSE.

由于稳定性方程作了抛物化处理，因而可以采用推进计算的方法进行求解，能够更有效地研究非平行流的稳定性问题。

Since the equation used to study stability is parabolized, the problem can be solved by the marching procedure. Then the stability of nonparallel flow can be studied based on this characteristic of PSE.

由于稳定性方程作了抛物化处理，因而可以采用推进计算的方法进行求解，能够更有效地研究非平行流的稳定性问题。

It is shown that using PSE to study nonparallel stability, especially to study nonlinear stability of nonparallel flow is much more effective. The result, which is comparable with Direct Navier-Stokes Simulations , can be obtained, and the time needed is lessened greatly.

采用PSE方法对于研究非平行流稳定性问题，特别是非平行非线性的稳定性问题极为有效，可以获得与直接数值模拟(Direct Numerical Simulations，DNS)精度相当的结果，而所需计算时间则成数量级地减少。

Portfolio investment is an efficient way to reduce risk. Risk can be classified into systematic risk and nonsystematic risk, and the latter can be diversified by portfolio investment.

投资组合是降低风险的有效途径，风险可以分为系统风险和非系统风险，后者可以通过投资组合的方式加以分散和消除。

An effective approach based on MTI filtering to eliminating nontransient meteor trails interference is presented using the theory of eigen subspace after analyzing the feature of the meteor trails in detail.

针对流星余迹干扰的特点，利用特征子空间理论，提出了有效消除非瞬态流星余迹干扰MTI滤波的方法。

The results also suggest that zeolite-encapsulated vanadium picolinic complexes catalyst can prevent the formation of μ-O dimer and possess high stability as compared to homogeneous catalyst. Moreover, heterogeneous catalyst can be recycled.

实验中还发现，均相络合物负载于分子筛中能够有效地抑制μ-O键二聚物的生成，使非均相催化剂具有更高的稳定性，并且能够回收利用。

And the corresponding chiral tertiary propargylic alcohols were obtained with enantiomeric excesses of up to 86%, which provided a simple, practical and inexpensive method to generate chiral tertiary propargylic alcohols.

经过筛选、测试，发现一β-磺酰胺基醇-钛复合物可在温和条件下，有效促进炔基锌对简单非活化酮的不对称加成，并且得到相应的手性三级炔丙醇，ee值达到了86%。

Reducing secondary flow losses is one of the key techniques to improve aerodynamic performance of turbomachine blade. Non-axisymmetric Endwall Profiling of turbomachinery blade has been proved to be an effective technique in reducing pithwise pressure gradient between pressure surface and suction surface.

降低叶栅内部二次流流动损失是提高透平机械通流效率的重要方法之一，非轴对称端壁成型技术已被验证能够有效地减小叶栅压力面与吸力面之间的横向压力梯度，降低叶栅内部二次流流动损失，提高叶栅效率。

They got a nasty shock, for instance, in 2003 when an outbreak of severe acute respiratory syndrome, SARS, showed how a virulent new plague, if uncontained, might impose huge costs on a modernising economy.

中国政府的一些不良做法曾经轰动世界，例如在2003年中国爆发了严重急性呼吸道疾病俗称非典，证明了如果对一种新型疫情不加以有效应对的话，就会给现代国民经济带来巨大的损失。

Arnoldi method is very efficient for computing the extreme eigenpairs of large unsymmetric matrices.

迭代Arnoldi方法是求解大型非对称矩阵特征问题的一种常用的有效方法。

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。