1 . arm
70、臂部動(dòng)作 arm movement71、劃水(臂)(arm) pull;stroke; paddle72、劃水動(dòng)作效率 stroke efficiency
2 . brachium
brace ①手搖曲柄鉆 ②梏具,支柱brachium 臂brachytherapy 針治療
3 . arms
Two people face each other at arms distance , with the same foot forward ., 兩個(gè)人面對面 , 距離大概是一臂距離.
4 . boom
boom stop 吊桿行程限制器boom 臂booming of spills 溢出物圍柵