WebWork and Spring MVC are two other Model 2 architectures that improve on Struts by being less procedural, but neither is as widely accepted (nor as mature, some would argue) as Struts.

WebWork和Spring MVC是另外两个Model 2架构，它们通过更加不像过程化的，在Struts的基础上有所改进，但是它们仍然没有Struts那样被广泛接受(或者没有那么成熟，有人可能对此有争议)。

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For composite staggered truss structures, the truss was simplified as two stories with lateral bracing spring model.

对于混合式交错桁架结构的稳定性，考虑了桁架层侧移刚度简化成两层带侧向弹簧的计算模型。

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The utility model comprises two butterfly wing-shaped base boards, a book clamp with a spring, a clamp rod grate, two clamp springs and two motion clamp rods.

由两个蝴蝶翅膀形底板、一个带弹簧书夹子、一个卡棍箅子、两个卡簧和两根活动卡棍组成。

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