一张配方中的所有成分都需要在物理上及化学上相互兼容，包括有效的治疗成分，辅药成分及包装材质。
The formulation must be such that all components are physically and chemically compatible, including the active therapeutic agents, the pharmaceutical ingredients, and the packaging materials.
皮带表面不同的材质、厚度及花纹决定皮带的附着力、物理、化学及机械特性。
Strap surface different material quality, Thickness and tracery decide strap 's adhesive power, Physics, Chemistry and mechanical characteristic.
介绍了氧化工艺参数，前、后处理工序，黄铜基体材质状况等因素对黄铜化学转化膜质量的影响。
Influences of parameters for oxidizing process, pre and post treatment procedures and material status of brass substrate on quality of chemical conversion film on brass were described.
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