Main products: conical twin-screw extruder, parallel twin-screw extruder, single-screw extruder, plastic extrusion line and auxiliary equipment, plastic recycling machine.

主要产品：锥形双螺杆挤出机、平行双螺杆挤出机、单螺杆挤出机、塑料挤出生产线及其辅机设备、塑料回收设备。

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A new type of broadband printed twin dipole antenna is proposed in this paper. Corresponding feed structure of broadside coupled parallel line is also designed.

本文给出了一种新型双偶极子型宽带印制天线，并设计出相应的类平行宽边耦合双线双面馈电结构。

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The results shown that the single big twin like convex is (102) and the twin parallel arranged is (112), high density of dislocation existed in twin.

结果表明，单个出现的凸透镜状粗大孪晶为(102)，平行排列的板状孪晶为(112)，孪晶内存在高密度位错。

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Should this be a parallel twin?

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The festival has no parallel in southern Europe, but it's Christmas's non-identical twin: it holds a special place in the national psyche with its own customs, memories and social pressure.

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