按膜材料的不同，包膜微泡造影剂可分为白蛋白类、非离子表面活性剂类、脂质体类和多聚体类。

According to different membrane materials, Encapsulated microbubbles ultrasound contrast agent can be divided into several categories such as albumin, liposome, polymer.

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随后，双层核膜消失，细胞器将逐渐解体，多泡体开始出现在纤维细胞的细胞质；

Then, double karyotheca disappeared, and the organelles disintegrated. Multivesicular bodies appeared in fiber cytoplasm.

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