The system use one sensor solved the examination problem of horizontal amplitude, horizontal frequency, vertical amplitude, vertical frequency and dynamic flexibility.

该系统利用一个传感器解决了横向振频、横向振幅、纵向振频、纵向振幅和动挠度五个参数的检测问题。

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Four-link portal crane using the best combination of optimized boom system, with horizontal small gap, amplitude stable, low power consumption.

四连杆门座式起重机采用最佳优化的组合臂架系统，具有水平落差小、变幅平稳、功耗低的特点。

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The velocity amplitude distributions of the oscillatory flow outside the boundary layer are measured at seven cross-sections along the horizontal, the vertical, and the bent sections respectively.

对于水平直管段上底面及下底面各三个截面，测量了边界层内振荡流速的振幅分布及相位分布。

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