noun🔗ShareトレスルツリーOne of two strong bars of timber, fixed horizontally on the opposite sides of the masthead to support the crosstrees and the frame of the top."The shipwright carefully inspected the trestletrees at the masthead, ensuring they were strong enough to hold the crosstrees and the weight of the top. "船大工は、クロスツリーとトップの重量を支えるのに十分な強度があることを確認しながら、マストヘッドのトレスルツリーを注意深く検査しました。nauticalsailingstructureparttechnicalChat with AIVocabulary GamePractice Reading