因此，多层骨架片系统是制备高水溶性药物控释制剂的有效方法。
The system of multi-layered matrix tablets provided an effective method for zero-order release of highly soluble drugs.
本实用新型涉及一种多层孔式空气过滤板，该过滤板由孔式过滤片、网状骨架及附件构成。
The utility model relates to a multilayer porous air filter plate which is composed of porous filter sheets, a mesh-shaped framework and accessories.
本实用新型涉及一种多层孔式空气过滤板，该过滤板由孔式过滤片、网状骨架及附件构成。
The utility model relates to a multilayer porous air filter plate which is composed of porous filter sheets, a mesh-shaped framework and accessories.
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