方向

Up above the world so high, Like a diamond in the sky. When the blazing sun is set, And the grass with dew is wet, Then you show your little light, Twinkle,twinkle,all night. Then the traveller in the dark, Thanks you for your tiny spark; He could not see where to go If you did not twinkle so. In the dark blue sky you keep, And often through my curtains peep, For you never shut your eye Till the sun is in the sky. As your bright and tiny spark Lights the traveller in the dark, Though I know not what you are, Twinkle ,twinkle,little star.

泰勒 一闪一闪，小星星你是什么，我弄不清大地之上高高挂好似钻石缀天空当炽热的太阳落西方露水将芳草浸湿时天庭之上你放微光一闪一闪彻夜亮暗夜茫茫行者难多亏这微光把路牵如你不曾频闪光行者怎能辨方向守在天庭深邃邃的蓝透过窗帘你常偷看因你从不歇歇眼直到太阳升天边你的光芒轻且亮给暗夜的行者指方向虽然你是什么我弄不清一闪一闪，你这小星星。

A cleaner includes a suction motor mounted in a cleaner main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction tube, and sucking dust and filth on a floor; a brush installed in the suction head so as to ascend/descend in a vertical direction, and sweeping dust and foreign substances into the suction head; and a brush height control apparatus installed in the suction head, and making the brush ascend/descend in a vertical direction.

一种吸尘器，它包括安装在吸尘器主体内并且产生吸力的吸尘马达；收集由吸尘马达所产生的吸力吸入的尘土或污物的过滤器；通过吸尘管与过滤器连接的吸尘头，吸尘头吸入地板上的尘土和污物；安装在吸尘头内从而可以在垂直方向上上升/下降的刷子，它将尘土和异物扫入吸尘头；和刷子高度控制设备，它安装在吸尘头中，并且使刷子在垂直方向上上升/下降。

The survey shows that 41% of Americans say the country is headed in the right direction, slightly below the 44% who say the country is on the wrong track.

调查显示41%的受访者说美国现在在向正确的方向前进，而认为方向错误的人占调查人数的44%。

Packet out of the 1st wheel are tranferred to yhe 4th wheel in the horizontal direction, while packet out of the 4th wheel in the vertical direction. Label-wrapped packet is lifted to a certain height on which stamp gluing is accomplished. After that, the packet is transmitted out of exit passage 8 and exit wheel 9. The whole process of soft packet packing is completely finished.

一号轮至四号轮之间的烟包交接都在水平方向进行，但四号轮是垂直方向输出烟包，把完成商标纸包装的烟包提升一个高度进行粘贴封签，并由输出通道8和烟包输出轮9输出，从而完成整个烟包的包装过程。

But I am not abstaining from lifting it that first moment of which I asked myself the question.

我从各个可能的方向中选出一个，因为在这个方向上障碍最少。

According to the information of mobile sensor nodes and the range data by apperceiving the target,in the method,the position of the target can be calculated.Then the tracked orientation of every source node can be located according to the position of source nodes and target nodes,so the target can be tracked by source nodes based on these orientation.

利用测距定位的移动追踪方法，根据移动传感器信源节点的信息及感知目标所得的测距数据，推算出目标的位置，由信源节点与目标节点的位置分别确定各个信源节点的追踪方向，使移动传感器信源节点沿该方向追踪目标。

The user presses one lobe (112) for an aspirating stroke to rotate the plunger shaft (48) in one direction and align the stop pin (52) with uppermost lower stop (104) for a relatively short aspirating stroke and the user presses the other lobe (114) for a dispensing stroke to rotate the plunger shaft (48) in the other direction and align the stop pin (52) with lowermost lower stop (106) for a relatively long dispensing stroke.

用户按压用于吸取冲程的一个凸耳(112)，以便使柱塞杆(48)沿一个方向旋转，并使止动器销(52)与用于相对较短的吸取冲程的最上面的下部止动器(104)对齐，而用户按压用于分配冲程的另一凸耳(114)，以便使柱塞杆(48)沿另一方向旋转，并使止动器销(52)与用于相对较长的分配冲程的最下面的下部止动器(106)对齐。

Beaching out is one of the most common errors, and it must be watched carefully: the finger must be slightly raised, but it must stay on the same side where the arm is rotated until the arm begins its turn in the opposite direction and transmits its throw to the finger.

最常见的错误之一是手指伸出触及别的键，这必须要注意才行：手指必须是稍微举起，而且它必须与手臂转动的方向停留在一个侧面里，直到手臂开始转向相反的方向，并且将&投掷&传达到该手指上。

It is shown that the direction of bifurcation and the stability of the bifurcating periodic solutions of the Euler methods are the same as the direction of bifurcation and the stability of the bifurcating periodic solutions of the original delay differential equation when the stepsize is small enough.

证明当步长充分小时数值Hopf分支的分支方向、分支周期解的稳定性与原方程的Hopf分支的分支方向、分支周期解的稳定性相同。

The results of this study indicate that changing the angle of the intake port has a profound effect on the flow field during the intake stroke of the engine cycle. For the case with the intake-exhaust valves canted at zero degree (the so-called vertical valves), the tumble ratio, swirl ratio, turbulent intensity, and turbulent kinetic energy in the direction perpendicular to the bisecting plane of the cylinder are at their highest levels than those obtained for the other cases. This effect is most pronounced after the compression stroke of the cycle. As a result of this study, it is observed that the behavior of the overall flow field from the intake to the completion of compression stroke has a major impact on the effectiveness of the mixing of fuel-air prior to the ignition of the engine cycle.

结果显示，改变进排气阀的倾斜角度对进气期间的流场变化有很明显的影响，其中以垂直阀(进排气阀倾斜0度)所得的 Y轴向(Y方向系垂直於将汽缸对分为二平面的方向)滚流强度、涡漩比、紊流强度、紊流动能等流场强度为最强；若以流体经活塞压缩后的流场特性进行探讨，所得结果显示压缩冲程对汽缸内流场的效应是不容忽视的；因此由进气到压缩过程结束的整体流场现象，才是影响引擎点火前的油气混合程度与燃烧品质的关键。

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。