它的优点和上节类似：紧凑数据表、跨三个具体子类的数据分区以及对子类任意数据的修改都只涉及一张表。
The pros are similar to the above section: compact tables, data partitions across three concrete subclass tables, and any data change on a subclass only involves one table.
尽管如此，更加夺人目光的是1088米长（苏通大桥全长32.4公里——译注）的苏通长江大桥，这是世界最长的斜张桥，而且也是第一座主跨部分超过1000米的大桥。
Even more visible, though, is the Sutong Bridge, which at 1088 meters (3570 feet) is the world's longest cable-stayed bridge, and the first whose main span exceeds 1000 meters.
基于两榀接近足尺的后张有粘结预应力混凝土框架的试验，对多跨预应力框架的内力重分布进行了研究，重点考虑了框架的连续性和轴压比的影响。
Based on tests of two full-scale double-span prestressed frames, internal force redistribution of frame was studied and continuity of structures and axial compression ratio of column were analyzed.
大跨钢拱与刚构协作桥梁是一种新型的组合体系桥梁，张拉系杆是调整这种体系内力与线形的重要方法。
The long-span hybrid bridge of steel arch and rigid frame is a type of new bridge structure system.
结果表明，中跨系杆张拉力主要由刚构承担。
The result shows that the tensioning force of main span is mainly undertaken by rigid frame.
分析了导致底板崩裂的主要原因，主要包括跨中合龙束张拉时产生的径向力作用、非预应力钢筋构造因素及施工影响等；
The main causes of bottom flat crack are analyzed, mainly including radial force generated by closure strands stretching in middle span , non-structural elements and construction effects , etc.
这次塌陷生成了一个跨四个街区长达50码的深坑，并在旁边行为乐意各0英尺张的深沟。
The landslide cut a 50-yard-long chasm across a four-lane street, leaving a 20-foot ravine behind.
本文介绍了地下大跨岩石隧洞于山溜冰场的施工步骤 ，微振动控制爆破技术在施工中的应用 ，以及树脂张拉锚杆的施工等技术。
The application of microseism controlled blasting technique during construction, as well as the construction technique of the resin tensile anchor bolts, are introduced also.
同时，为了与更多TED爱好者分享这场脑力激荡的跨界活动，若您无明确说明，我们将仅为您提供一张入场券。
Meanwhile, in order to give seats to as many TEDsters as possible, we would only provide you one ticket if there is no request beforehand from you.
同时，为了与更多TED爱好者分享这场脑力激荡的跨界活动，若您无明确说明，我们将仅为您提供一张入场券。
Meanwhile, in order to give seats to as many TEDsters as possible, we would only provide you one ticket if there is no request beforehand from you.
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