根据试验要求和厂房结构形式，本论文的模型试验在发电机层采用拱顶送风系统，风口对称均匀布置，选取5种风口布置方案。
Adopt arch crest as air supply system, arrangement vents symmetry, and select 5 kinds of vents to arrange the project, according to the experiment request and factory premises construction form.
通过引进表示经济衰退的解释变量，我们检验了中国实际季度GD P序列当中存在的非对称性，说明这些非对称性主要是由模型的非线性结构形成的。
By inducing the measurements of recession degree, we have tested the asymmetry in quarterly real GDP data of China's economy, and showed that it is caused by the nonlinear structural model.
在电阻应变计的位置布局中，利用了空间对称结构形式，从而实现了信号的加强、补偿以及多通道冗余功能。
The reinforcement and compensation and multiple channel redundancy of signals are realized by using space symmetric structure of resistance strain gauges.
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