external inversion的用法和样例：
例句
- Range of movement in the foot and ankle includes inversion and eversion at the subtalar joint.
脚和脚踝的运动范围包括距下关节处的内翻和外翻。 - Wet meal eversion using scraper chain structure, part of the first round of the drive is external bearings, by reducing solvent gases erosion of mechanical problems.
湿粕刮板采用外翻式链条结构，头轮部分的传动轴承是外置的，减少因溶剂气体的侵蚀而发生的机械故障。
