n.托梁...

joist的音标：joist的英式发音音标为：[dʒɔɪst]joist的美式发音音标为：[dʒɔɪst]...

joist的复数形式为：joists...

The transverse diaphragm is very similar in appearance to the conventional bar joist.横梁很相似于通常的钢筋搁栅.A triangular metal bracket used to strengthen a joist.用于加固托梁的金属板....