diameter grade, diameter class; 又称“径级”。
胸（高直）径
diameter at breast height\nDBH\n林
暂无补充释义。
相关词条
pore diameter
external diameter
bead diameter at rim seat of cycle tyre【橡胶】
biparietal diameter, BPD
vertico-podalic diameter
interspinous diameter
intertrochantoric diameter