downstroke

基本解釋

The minimum polished rod load occurs near the top of the stroke with the start of the downstroke.
最小光桿負(fù)荷發(fā)生在下行沖程開始時的沖程頂部附近。
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Sporting a powerful but eccentric downstroke, Guldahl won three major championships in as many years.
動作古怪地?fù)]出了有力一桿後，古德赫取得了三大重要賽事的連勝，而且好幾年都贏了大滿貫。
The lines that formed the letters started again each time on the upstroke, the downstroke, and before the curves and loops.
那些組成字母的一行行字每次開始寫時都朝上挑，朝下沖的，而且還是在那些曲線和圈圈之前。