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main yard 【航海学】主帆下桅横桁 以上来源于:《21世纪大英汉词典》 main yardn.① 【海】大桅之桁,主帆之架main yardn.【海】主桅下帆横桁详细释义源自:《新世纪英汉大词典》Collins外研社 n.主桅下帆横桁【航海】英英释义n.yard for a square mainsailmain yard可数名词‘航海’主帆之帆架main yard主桅下帆横桁main yardn.(名詞 noun)【海】主桅下帆中桁document.write('function my |