noun 다운로드 🔗공유 신호수, 크레인 조작원 The person who directs the operation of a crane or larger vehicle from the point near where loads are attached and detached. Examples : "The banksman used hand signals to guide the crane operator as the steel beam was carefully lowered into place. " 신호수는 강철 빔을 조심스럽게 제자리에 내릴 때 크레인 조작원을 안내하기 위해 수신호를 사용했다. job technical machine industry vehicle position person work AI와 채팅어휘 게임독해 연습
