I-beam
i-beam的音标和读音:DJ音标发音: [ˈaiˌbi:m]KK音标发音: [ˈaɪˌbim]
i-beam的词性:n.(名词)
1. A steel joist or girder with short flanges and a cross section formed like the letter I.I形金属横梁,工字梁:由短翼缘和一个十字部分做成象字母 I的钢制托梁或主梁