管（道支）架要有一定的强度及刚性，与其荷载和服务相适应，并且其安装不应对建筑结构产生过度应力。
Supports shall be of strength and rigidity to suit loading, service and installed in manner which will not stress unduly the building construction.
为适应增长了的交通量，我们必须在河上再架一座新桥。
We must put a new bridge across the river to take the increased traffic.
为此，铁道部决定对该型转向架实施七项改进措施，使之适应提速要求。
So, the Ministry of Railways decided to carry out 7 improving measures on trucks of this type in order to meet the requirements of speed increase.
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