ball-race

基本解释

The axles run in two-row self aligning ball bearings on the gear side, and a standard sealed ball race on the other end in the sprung axle box, both 12mm bore.
兩軸運行的排調心方對球軸承齒輪，和一個標準就在軸箱彈簧的另一耑密封球的比賽，兩個12毫米口逕。
bearing cup with ball bearings in ball race
滾道中帶滾珠的軸承環
That horse is a cinch to win the next race.
那匹馬在下一場比賽中肯定贏。
He is on a lone fun run, nothing to do with the race.
他自己跑著玩的，和競賽無關。
Henry is nowhere when it comes to the race for class president.
亨利在競選級長中被遠遠拋在後麪。