为制造出微滴球体，Yin博士和同事把氧化铁粒子放入液体聚合树脂搅拌后散入油中。

To make their spheres Dr Yin and his colleagues stir iron-oxide particles into a liquid polymer resin, which is then dispersed in oil.

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每个微滴都有一颗油核，周围包裹着一层薄薄的氰基丙烯酸正丁酯。

Each droplet has an oil core surrounded by a thin layer of butyl cyanoacrylate.

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每个微滴都有一颗油核，周围包裹着一层薄薄的氰基丙烯酸正丁酯。

Each droplet has an oil core surrounded by a thin layer of butyl cyanoacrylate.

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