查询词典 downstroke

So, when a bird banks right, its left wing moves faster on the downstroke while the right is faster on the upstroke, which slows the animal's rotation.

因此，当鸟儿向右侧倾斜飞行时候，它的左翼向下拍打的速度要比右翼向上拍打的速度快一些，这样就可以使旋转减速。

The wing flexes in towards the body (largely due to a rotation of the humerus about its long axis) and then rises and extends ready for the next downstroke.

机翼弯曲，在对机构（主要是由于轮换肱骨约其长轴），然后再上升，并扩大作好准备，为下一步

They found that the shift from a vortex-ring to a continuous-vortex gait depended on sufficient forward velocity to provide airflow over the wing during the upstroke similar to that during the downstroke.

他们发现，转移，从涡环一个连续涡步态依赖于足够的前进速度提供的气流，机翼在upstroke类似，在

The new technology makes the sucker rod string downwards easily by applying a downward hydraulic force at the bottom of the hollow sucker rod string, which effectively solves the problem of large drag force on the downstroke in the present technology of this kind.

介绍了一种新型空心杆采油工艺技术，这种技术采用了具有液力反馈原理的空心杆抽油泵，该泵的特点是能有效地减小空心杆的下行阻力，并能增加抽油杆的下行动力。

Then, with a powerful downstroke, they dive back into the depths of the sea, leaving just a smooth glassy patch of water or "footprint" on the surface to indicate where they had been.

随后，它们又一猛子扎入深邃的大海，将一片光滑晶莹的细浪或者说"足迹"留在海面，表示它们曾到此一游。

The torque factor is the same value at any polished rod position whether the unit is on the upstroke or downstroke.

今天下午帮你翻的那一段，factor翻译成了"参数"，现在揣摩起来，还是"因数"比较合适

Upstroke: the wing flexes in towards the body (largely due to a rotation of thehumerus about its long axis) and then rises and extends ready for thenext downstroke.

upstroke ：机翼弯曲，在对机构（主要是由于轮换肱骨约其长轴），然后再上升，并扩大作好准备，为下一步

A similar twist with an extended human arm would start with the thumb pointed slightly up at the top of the flap, then the arm would turn so the thumb is parallel to the ground in the middle of the flap and continue down until the thumb is pointed toward the ground at the end of the downstroke, Thomas says.

托马斯介绍说，对于人伸出的一只胳膊，类似的扭转应该是：在开始拍动动作的最高位置，拇指轻微上指；然后胳膊旋转，这样拍打过程中拇指会与地面平行并连续下降，直到下降过程结束时拇指向下。

The instantaneous gearbox torque at a given polished rod position (whether on the polished rod upstroke or downstroke) is the torque factor at that polished rod position multiplied by the net gearbox load at that position.

在一个指定光杆位置的瞬时变速箱扭矩（无论是上行还是下行冲程）等于那个光杆位置的扭矩因数乘以那个位置的变速箱净载荷。

The results show that the camber deformation may play an important role in lift and drag coefficients. The positive camber deformation of the hindwing during the downstroke generates the vertical force, whereas negative camber deformation of the wing during upstroke generates thrust force. The freely flying dragonfly's hindwings play an important role in providing a stable lift force, and the forewings are very important for controlling flight behavior, such as turning, climbing and so on.

建立了自由飞行昆虫运动测量系统，开发了结合条纹投影和昆虫翅膀特征点测量翅膀变形和身体姿态的方法，首次测到了自由飞行昆虫运动翅膀变形和各种相关角度，速度、加速度，身体位置与姿态，通过分析比较直飞和转弯各个运动参数，认为蜻蜓的飞行控制主要由前翅完成，而后翅主要用于产生升力。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。