Harbin sifangtai bridge is a cable-stayed bridge whose girder is composed by steel i-beam above and concrete deck slab below.

作为叠合梁斜拉桥，四方台大桥的主梁由下部的工字钢和上部的混凝土行车道板组合而成。

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The series of pulleys all the parts are standard modules, according to the requirements of different steel I-beam and use flexible assembly.

该系列滑车所有部件，均由标准化模块组成，可根据不同的工字钢梁及运用要求灵活组装。

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Among various steel structures, I-steel beam (H-steel beam) is the most widely used as the main structure of almost all engineering works.

作为钢结构中的主要构件之一的工字钢梁(H钢梁)是工程中使用最多的型钢之一。

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He told me of a box on his route that has a steel I-beam for a post and, riding astride it, a regular mailbox set inside a much bigger metal box, the space between the two filled entirely with concrete.

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