Usually the anterior surface of the hand is called the volar or palmar surface and the inferiorsurface of the foot is called the plantar surface or sole.
通常将手的前面称为掌面或手掌，脚的下面称为跖面或足底。
2
Objective To study the influence of excision of sacrum through the superior and inferior margins of the 1st to 3rd posterior sacral foramina on area of sacroiliac joint surface.
目的研究经第1~3骶后孔上、下缘水平切除骶骨对骶髂关节面面积的影响。
3
Burr defect often appears on the surface of investment casting and it is the main reason causing inferior produces.