One is the saddle-type structure where the projection point is located either in the up part or the down part of the phase plane, which is divided by both stable and unstable manifolds.
一类是投影点处的轨迹走向服从鞍点规律，且由于投影点位于稳定流形与不稳定流形分割的相平面的上部或下部，故轨迹将沿稳定流形方向到达动态鞍点再沿不稳定流形方向离开该点；
An advantage of this type of saddle clamp was that permanent repair could be made by welding the steel piece to the pipe and then removing the bolted portions.
这类鞍形管卡的优点是可对管道泄漏点进行永久性修理，把钢板和管子焊接，然后拆走螺栓部分。
There exists a saddle type zone in the hydraulic moment curve of axial-flow pump blades which corresponds to the saddle zone of discharge-head characteristic curve of the pump.
轴流泵叶片水力矩随流量变化的关系曲线存在一个马鞍区，并与流量-扬程曲线的马鞍区相对应。
Include:Layer, layer format shelf, drawer type shelf, Chu cabinet type shelf, U form, hang the steel tube, tire appropriation shelf…etc. of the arm, grid, saddle, spirit bottle.
包括：层架、层格式货架、抽屉式货架、橱柜式货架、U形架、悬臂架、栅架、鞍架、气罐钢筒架、轮胎专用货架等。
Include:Layer, layer format shelf, drawer type shelf, Chu cabinet type shelf, U form, hang the steel tube, tire appropriation shelf…etc. of the arm, grid, saddle, spirit bottle.
包括：层架、层格式货架、抽屉式货架、橱柜式货架、U形架、悬臂架、栅架、鞍架、气罐钢筒架、轮胎专用货架等。
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