Controlled release drug core with rod-shape can be manufactured by injection process which has the feature of high production efficiency and high precision for drug core.
结果：①采用挤出成型法制备棒状缓释药芯具有生产效率高药芯精度符合要求的特点。
Ball screw rod imported from Germany can assure the high speed and precision.
德国滚珠丝杆精度高，精确高，速度快。
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