Wider spans are more economical and better for the navigation of shipping than shorter ones between piers with deep foundations penetrating the bed of the waterway.
与在河道下深打桥墩基础的短跨距相比,长跨距对航运更好更经济。
The symmetry between particles and antiparticles is woven deep into the foundations of physics.
粒子与反粒子间的对称性深深地锲入到物理学的基础之中。
Only some foundations are shown, no deep sophisticated details.
这里只讲述一些最基础的东西,未涉及复杂的技术细节。
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