1、伞形齿轮
... crownedbit阶梯式钻头 crowngear伞形齿轮 crowning中凸 ...
2、冠轮
... 关节型操作器jointedmanipulator 冠轮crowngear 管壳式换热器tubularheatexchanger ...
3、差动器侧面伞齿轮
...crownheight冠部高度，冠高；冠高比crowngear冠状齿轮；差动器侧面伞齿轮archcrown拱顶 ...
4、冠状齿轮
...crownheight冠部高度，冠高；冠高比crowngear冠状齿轮；差动器侧面伞齿轮archcrown拱顶 ...