Metallic probes were at each end, and a soft silicon tube was in between.

方法新型泪道探通引流装置由两端金属探子及中间软性硅胶管组成。

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Metallic probes were at each end, and a soft silicon tube was in between.

方法新型泪道探通引流装置由两端金属探子及中间软性硅胶管组成。

youdao