单词：roller bit
roller bit的用法和样例：
例句
- The desig ner should consider comprehensively the effect of structure data and radial clea rance on the life of the roller bearing, in order to make optimum design.钻头设计要优化轴承结构参数和径向游隙，以提高国产牙轮钻头的寿命。
- rock bit凿岩钻头
单词：roller bit 相关文章
1) Exhilarating Rides-Top 2) Roller Coasters in Europe Number 3, it’s Shock Wave, Europe’s only stand up roller coaster. It’s in the English Midlands. Shock Wave is a 3) cracking 90 seconds. Fir
疯狂英语2003年
台湾籍旅美老师今天交给我们的句子是： That's the feeling you get if you're going over the top of a roller coaster, going, like, Whoooooaaaahhhh! 你会感受到这样的感觉：就像坐云霄飞车，从顶端俯冲下去！哦哦哦
留美老师带你每日说英文
He gets on the roller coaster. His mom sits next to him. This is his first roller coaster ride. The roller coaster starts up. It is fast. It goes up and down. It goes around and around. He looks at his mom. His mom looks at him. They both laugh. The
儿童英语小故事
Roller Coaster Ride 座云霄飞车 Each summer the fall Fair comes to Cranbrook. They set up their games and rides on the west side of the river near the empty car lot. Every year little Tommy watches the strong men pound the tent pegs into the grou
英语小达人
今天我们要学的词是roller coaster。 Roller coaster, 是翻滚过山车的意思，可以用来指事件和情绪的时起时落，忽好忽坏。 NBA star Kobe Bryant is having a roller coaster year, 美国篮球明星布赖恩特今年可以说
英语每日一词
只要坚强一点点：A Little Bit Stronger Artist：Sara Evans Song：A Little Bit Stronger Woke up late today and I still feel the sting of the pain But I brushed my teeth anyway I got dressed through the mess and put a smile on my face I got a l
流行英文歌曲