exterior of surface

• 外表面

exterior of surface的用法和样例：

例句

1. Measure the concave mark and crackle of pipe.
   直接测量导管外表面之凹痕及裂纹深度。
2. These tears activate cells on the outer surface of the muscle called satellite cells.
   这些破损将刺激肌肉外表面上的被称作卫星细胞的细胞。