On the third length, breathe every three strokes, with each hand-hit counting as one stroke. This is commonly called bilateral breathing.
第三个长度采用三划一换气，注意每只手的划水都算一划。这样的换气方式就是通常说的双侧呼吸。
I've often seen swimmers who have been working on their Stroke Length, swimming with an impressively low SPL – let's say 12 strokes for 25 yards – but a thoroughly inefficient style.
我经常看到泳者练习他们的划手滑行长度，有些是让人印象深刻的低划数游泳（譬如说划手12次游25码）但是非常没有效率的游泳技巧。
These data do not lend support to the use of thigh-length GCS in patients admitted to hospital with acute stroke.
这些数据并不支持长筒gcs对急性中风住院患者血栓发生有预防作用。
According to the lowest driving speed allowed by the routes and the stroke curve of add-substract speed of the trucks, we have determined the length of climbing roadway with the graphic method.
文中根据路线允许最低车速和载重车的加减速行程曲线，用图解法确定爬坡车道的长度。
With an adjustable crank pin to control the length of stroke. As the bull gear rotates, the rocker arm is.
惠氏机构的电机转动重载齿轮，驱动一个带有可调整销钉的曲柄以便控制进、回程的长度。
Start with a length of each stroke with one arm held down to your side.
开始每个有距离的泳姿只用一只胳膊。
Start with a length of each stroke with one arm held down to your side.
开始每个有距离的泳姿只用一只胳膊。
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