您要查找的是不是：
- He asked for an extension of his visa. 他申请延长签证有效期。
- A slot for a key in the hub or shaft of a wheel. 键槽轮子的毂或轴里的键的沟槽
- He built an extension onto his house. 他给自己的住宅扩建了一部分。
- Extension of the injured arm was painful. 把受伤的胳膊伸展开是很疼的。
- By extension, an array of any number of dimensions. 广义来说，矩阵可以是任意维数的数组。
- Flexibility, as in the shaft of a golf club. 弹性，韧性柔韧性，易变性，如高尔夫球棒的柄
- We built an extension to our house. 我们扩建了我家的房屋。
- In rotating, the shaft splashes oil up into the bearings. 当轴旋转的时候就把油溅入轴承。
- Extension of validity of bid shall normally not be requested. 一般来说不应要求延长投标有效期限。
- A framework to support or strengthen a mine or shaft. 井壁基架用来支承或加固矿井的构筑
- A shaft on which a working tool is mounted, as in a dental drill. 心轴用于安装工具的蕊棒，如牙钻蕊棒
- The part of a machine shaft or axle supported by a bearing. 轴颈机械的转动轴或轮轴中由轴承所支撑的部分
- She has an extension in the kitchen and in the bedroom. 她的厨房和卧室都有电话分机。
- shaft extension 轴外伸部
- An inclined or vertical shaft or passage between levels in a mine. 小暗井矿井里层与层之间倾斜的或垂直的竖坑或通道
- rotating shaft extension 旋转轴伸
- An extension of the spindle shaft drives a counter for totalizing discharge. 心轴的延长部分带动一个累计流量的计量器。
- A shaft that turns or is turned by a crank. 机轴用曲柄来转动的轴
- The spirally threaded shaft of a worm gear. 螺纹蜗轮的刻有螺旋线的柄
- Who perpetrated that dreadful extension to the front of the building? 谁在那楼房正面加盖了那麽一截讨厌的建筑物?
