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(kāi)始時(shí)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(dòng)作古怪地?fù)]出了有力一桿后，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(mǎn)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(kāi)始寫(xiě)時(shí)都朝上挑，朝下沖的，而且還是在那些曲線(xiàn)和圈圈之前。