helmet
特殊用法climbing helmet1.■头盔communication helmet1.■通信帽crash helmet1.■头盔, 防护[安全]帽diving helmet1.■潜水帽dust helmet1.■防尘罩face helmet1.■(练习用)面罩pile helmet1.■桩盔pile driving helmet1.■桩帽, 桩箍pressure helmet1.■加压飞行帽protection helmet1.■防护头盔safety helmet1.■安全帽welder's helmet1.■焊工帽罩
考试词汇表
