upward-stroke

基本解釋

An upward stroke, as of a brush.
向上的一下如向上一筆
Forward spin (usually of a moving ball) that is imparted by an upward stroke.
對球體的向上一擊所引起的該球旋轉(zhuǎn)并向前飛行。
The main drawback to this design is the power loss on the upward stroke of the piston caused by the exhaust valving.
主要缺點(diǎn)是這種設(shè)計(jì)的功率損耗的向上中風(fēng)活塞所引起的排氣門。
Apply nightly,before moisturising,over face and neck with upward strokes.
在使用前先向上按摩臉和脖子，適合晚上使用。
slanting upward stroke towards the right
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