目的制备苦参碱渗透泵型控释片，同时建立一种新的设计初级渗透泵处方的方法。
Objective To prepare controlled release tablets of matrine, and establish a new method for preparation of elementary osmotic pump tablets.
目前，轴向变量柱塞泵的关键技术掌握在国外公司手中，国内的研究、生产、制造均还处于初级阶段。
At the present, the key technology of the axial variable displacement piston pump is grasped by the foreign companies, the research and manufacture level in our country are on the elementary stage.
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