jib boom

美 　英

• na.【航】第二斜桅
• 網(wǎng)絡(luò)起重機(jī)懸臂；起重機(jī)動(dòng)臂延伸；吊裝臂

英漢解釋

na.	1. 【航】第二斜桅

英英解釋

n.	1. an extension of the spar that sticks out from the front of a sailing ship and supports the jib

例句

With one hand I caught the jib-boom, while my foot was lodged between the stay and the brace;

我一只手抓住船首的三角帆衍，一只腳插在支索和轉(zhuǎn)帆索之間。

Confirm danger points of jib-boom on tower crane

塔式起重機(jī)起重臂危險(xiǎn)點(diǎn)的確定