复合微球经碱液洗脱再生后能够多次使用。

Composite microspheres could be regenerated by pouring to wash with dilute alkali liquid.

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合成纤维球经硅树脂处理；多次洗涤后依旧保持松软和弹性。

Silicone treated synthetic fibre balls; retain their fluffiness and resilience wash after wash.

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颈静脉球经下鼓室底部骨层裂隙膨入中耳腔，是一种罕见的中耳腔血管异常。

Dehiscence of the floor of the hypotympanum with protrusion of the jugular bulb into the middle ear cavity is a rare otological finding.

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