Hollow microspheres are a type of microspheres with hollow space inside.

中空微球是一种内部为空腔结构的球形微粒。

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Objective:To optimize the prepartion of genistein chitosan microspheres with central composite design (CCD).

目的：采用星点设计实验，优化金雀异黄素壳聚糖微球的制备工艺，提高预测性。

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It has been used successfully to determine the thermal conductivity of hollow glassy microspheres with simple equipment.

用该法已成功地测定了空心玻璃微球的热导率。

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The new vaccine microspheres, on the other hand, can be injected straight into the body, eliminating those sorts of mistake and with them the need for the preservatives found in ordinary vaccines.

ECONOMIST: Vaccines