headgear anchorage口外弓支抗;帽口外弓支抗;头帽口外弓支抗
Steel Headgear护颚金属头盔
Safety headgear安全帽
headgear leg井架支腿
iron headgear铁钉帽
Headgear Brackets头饰方括号
sinking headgear凿井设备
headgear pull头帽牵引
headgear headwear头饰
N-UNCOUNT(不可数名词) You use headgear to refer to hats or other things worn on the head. 帽子; 头饰