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A novel compound barrier constructed with HCl modification zeolite and calcite was reported to control phosphorus and nitrogen release from sediments.

天然沸石和方解石复合覆盖层不仅可以有效地抑制底泥氨氮的释放,而且可以有效地抑制底泥磷的释放。

Efficiency and mechanics of compound barrier with calcite and zeolite to immobilize phosphorus and nitrogen release from sediments were researched.

通过模拟试验,研究了沸石和方解石复合覆盖层控制底泥氮磷释放的效果及机理。

The paper put forward the innovative heating mould technology contrapose the moulding request of aluminum foil- plastic top in the newfashioned composite easy- opened lid , and discusses the working principle?movement rule and the design of transmission of the technology.

本文针对新型复合易拉盖中铝塑盖片成型要求提出了具有创新性的冲切热压工艺,论述了该工艺的工作原理、装置运动规律以及实现该工艺的传动设计。