albumin microballoons 白蛋白微球制剂
KMG microballoons KMG微球
Glass Microballoons 玻璃微珠
microballoons composite 空心微球复合材料
nanometer microballoons 纳米微球
·2,447,543篇论文数据，部分数据来源于NoteExpress
glass microballoon 玻璃微珠
The rest of the vertical column is made from a material called syntactic foam - a solid made mostly of hollow "microballoons" - giving it enough buoyancy to float back up.
BBC: James Cameron back on surface after deepest ocean dive
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