方向

Conversely, we can deduce their absolute configuration from the optical rotation direction.

由化合物的绝对构型，可以预测其旋光方向；反之，由旋光方向可以推断其绝对构型。

By measuring the apparent velocity of light in various directions, one could determine the absolute velocity and direction of motion of the Earth.

在不同的方向上测量光的视速度，一个人能确定绝对速度和地球运动的方向。

Through the introduction of the adjacent object direction angle and shielding angle,the ultimate adjacent objects are identified close to the direction of the adjacent object mask.

通过引入相邻对象方向角和屏蔽角，对方向接近的相邻对象进行屏蔽，实现对确定相邻对象方法的改进。

The new method is a combination of characteristic approximation to handle the convection part, to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion, a smaller time truncation is gained at the same time, and a mixed finite elementspatial approximation to deal with the diffusion part, the sealer unknown and the adjoint vector function are approximated optimally and simultaneously.

此方法即为对方程的对流项沿流体流动的方向即特征方向进行离散，从而保证格式在流动锋线前沿逼近的高稳定性，消除了数值弥散现象，并得到了较小的时间截断误差；另一方面，对方程的扩散项采用混合元离散，可同时高精度逼近未知函数及其伴随向量函数，理论分析表明，此方法是稳定的，具有最优的L~2逼近精度。

Law of agglomeration of aggrandizement of Ying Yifu mine is the aggrandizement that the aggrandizement that our country mixes the technical reformation of couplet law factory to should be directional; to do obeisance to ear law course with new-style and shunt-wound law should do obeisance to ear law dissolve to give new technology to be course of law of directional; agglomeration with double flowstone ash direction.

我国混联法厂的技术改造应以新型并联法为方向；拜耳法过程的强化应以双流石灰拜耳法溶出新工艺为方向；烧结法过程的强化应以富矿强化烧结法为方向。

Sizing is clearly headed in the direction of neutral, and neutral divides in two directions: one is self-retention of neutral, such as the AKD, ASA cationtype Rosin, neutrase ployster and the other is a non-self-fixed neutral, such as the anion dispersed oil Rosin, anion, neutral polyester resin, and the latest research interest is the preparation, to meet the many self-retention and Rosin Sizing the performance of the Department of sizing agent, such as neutrase ployster, epoxidized Rosin, etc.

造纸施胶正朝着中性施胶方向迅猛发展，而中性施胶剂又分为两个方向，一是自身留着型中性施胶剂，如AKD、ASA、阳离子分散松香胶、中性聚酯，另一类是非自定型中性施胶剂，如阴离子中性分散松香、阴离子石油树脂、中性聚酯等，而最新型研究方向则是将二者统一起来，制备成兼具自身留着和松香系施胶性能的施胶剂，如中性聚酯，环氧化松香等。

Vertical and horizontal surrounding rock pressure can be determined by the statistic analysis of actual measured data.

依据实测围岩压力的垂直与水平分量沿隧道跨度与高度方向的统计规律，确定垂直方向与水平方向围岩压力的计算图式。

Analysis of causes as to why MCS propagates to the southwest of MCC indicates the propagation direction depends on the direction and velocity of the two convergences.

分析MCS在MCC西南方向传播的原因表明，两条辐合线的移动方向和速度决定了暴雨MCS的传播方向。

As there are sparse superpositions in in-line direction and larger offsets, it is easy to cause the "acquisition footprints". Therefore, the suggestions for shortening shot-line distance by increasing folds in in-line direction and for using a scheme of folds of 12x5 or 10x6 have been made.

由于in-line方向上的叠加次数较少，导致炮线距较大，在in-line方向上容易产生&采集脚印&，因此，建议适当增加in-line方向上的覆盖次数，以减小炮线距，建议采用12×5或10×6次覆盖。

Magnetotelluric field finite difference migration tomography Found on the researches of Zhdanov etc. in MT finite difference migration tomography, we analyze and summarize both fruits and limitation of foregone peoples' achievements. So more precise finite difference extrapolation equation can be deduced, and it can be easily applied into the migration tomography. New equation reserved the derivative terms of wave number both at vertical and horizontal direction, so that more exquisite geoelectric diversification can still be accommodated, that is the very requirement of practical data interpolation.

大地电磁有限差分偏移成像技术：在Zhdanov等人建立的有限差分偏移成像研究的基础上，总结分析了前人在 MT成像技术方面的研究成果和存在问题；推导更精确的有限差分波场延拓方程，采用改进的有限差分法进行大地电磁场偏移成像，差分延拓方程保留波数对水平方向和垂直方向的一阶导数项而提高求解精度，可适应电性纵横方向变化剧烈的地电构造，使成像分辨率得到增强。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。