例如当我想让一个物体像相反的方向移动，我首先需要让它慢下来，然后在推动它向另外一个方向移动。
If I wanted to reverse an object's momentum, I first had to slow it down before I could get it moving in the opposite direction.
在一个时期，表层和次表层的水流方向相反；表层水流向外海方向流动，靠近底层的水流则向陆地方向流动。
For a time, surface and subsurface current are in opposite directions; flow is seaward at the surface and landward near the bottom.
与热量在金属材料中可以向各个方向传导有所不同，这种制程能够令热量在这些聚合物中只沿着某一个方向传导。
The process does endow the polymer to conduct heat in only one direction, however, unlike metals which conduct equally well in all directions.
通过这种有选择性的离子使其向一个方向移动，电子(在阴极产生)则向相反的方向流动。
As the selected ions moved in one direction, electrons (which are negatively charged) flowed in the opposite direction.
通过选取最优转换矩阵，将这一方向与其它因素在一致空间中所在方向相分离，提出一种故障隔离的方法。
The method for fault isolation is presented by separating this fixed direction from the directions in the parity space of the other factors by using the optimal transformation matrices.
玻璃体黄斑牵拉力在裂孔形成早期阶段起一定作用，其作用方向可能包括前向和切线方向。
Vitreous fovea traction played some roles in the formation of idiopathic macula hole in its early stage, but the traction included anterior and tangential direction.
所述工件保持件(5)和工具保持件(3)可以相对于彼此在第一方向和不同于第一方向的第二方向运动。
The workpiece holder (5) and the tool holder (3) can be moved relative to one another in a first direction and a second direction that differs from the first direction.
第二中空部件从所述支撑轴的所述顶端在与所述第一方向相对的第二方向上延伸。
A second hollow member extends in a second direction opposite to the first direction from the tip end of the support shaft.
ORB可以作为判断每天方向的一个指标，向哪一方向出现扩张现象，在接下来的2-3小时就很可能持续这个方向运动。
The ORB can be utilized as a general indicator of bias every day. Whichever side of the stretch is traded first will indicate bias in that direction for the next two to three hours of the session.
二元三方向剖分是方向最少的三角剖分，建立在其上的二元三向四次箱样条在CAGD等领域有着广泛的应用。
Bivariate 3-direction is a triangulation with the least directions. Box spline built on it is widely applied in CAGD.
平行直线是在同一平面内的直线，向两个方向无限延长，在不论哪个方向它们都不相交。
Parallel straight lines are straight lines which, being in the same plane and being produced indefinitely in both directions, do not meet one another in either direction.
平行直线是在同一平面内的直线，向两个方向无限延长，在不论哪个方向它们都不相交。
Parallel straight lines are straight lines which, being in the same plane and being produced indefinitely in both directions, do not meet one another in either direction.
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