The characteristics to dimension chain constraint is analysed, dimension loop model is put forward based on the dimension chain for solving dimension relationship constraints.
针对尺寸之间的关联约束，本文首先分析了尺寸链约束的特点，提出了基于尺寸链的尺寸环模型。
The parallel chain constraint, which is imposed by the sidewall on the concrete structure of the volute layer, plays a relatively small role on the dynamic characteristics of the structure.
厂房上下游边墙围岩对蜗壳层混凝土结构的水平链杆约束对结构动力特性影响较小；
OK, and we can find this one from the constraints as we've een at the beginning either by differentiating the constraint, or by using the chain rule on the constraint.
我们可以从限制条件中找到这个，我们一开始就看到的，要么用微分限制条件，要么利用链式法则。
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