Rolling time on the bed surface in rotary kilns are dominant to the efficiency of heat transfer and mass transfer,therefore,a random particulate trajectory model including the rolling process was developed to predict the percentage of rolling time.
本文建立了考虑表面滚落时间的随机颗粒轨迹模型,实现了对颗粒滚落时间百分比的预测。
a grounder that rolls along the infield.
沿着界内滚动的地滚球。
irregular bounder
不规则弹跳的地滚球
Ladies Lawn Bowls Association of Hong Kong Limited
香港女子草地滚球总会
A bowling game in which nine wooden pins are the target.
九柱地滚球一种滚球游戏，用九根木柱做靶子
The Chinese used to call bowling as "grounder", which was a kind of indoor sport using a grounder hitting the stakes. It was origi-nated in Germany between the 3rd-4th century.
保龄球(Bowling)中 国人过去叫“地滚球”，是一种滚球击木柱的室内体育运动。
electric indicator for racecourses, football, stadiums bowling alleys
电动指示器,跑道、足球场、地滚球戏球场用
Annie: How long is the history of the Chinese gounder?
安妮：中国的地滚球有多长历史了?
Maiga: The International Grounder Federation was founded in 1951.
麦加：“国际地滚球联合会”成立于1951年。
To reach base safely on(a bunt or ground ball).
安全上垒使（短打或地滚球）成为安打
wooden ball that is bowled in the Italian game of bocce.
意大利式室外地滚球游戏中投掷的木球。
The billiard ball travelled gently across the table.
台球慢慢地滚过台面.
The ball trickled into the hole.
那球慢慢地滚进洞内.
When he hits the ball along the ground, it is called a "grounder".
汤姆: 如果他打一个沿场地滚的球，就叫作滚地球。
make an out by hitting the ball on the ground, in baseball.
棒球运动中打滚地球出局。
To be put out by hitting a ground ball that is fielded and thrown to first base.
打滚地球出局因打出的滚地球被截或被掷回一垒而出局
plop came the ball down to the corner of the green.
砰地一声，球滚到了草坪的角落里。
Taylor hit a ground ball to the shortstop.
泰勒朝游击手击出一滚地球。
grounded to the second baseman.
打到二垒手位置的滚地球