dust-proof ring
常见例句
- A cylinder with a dust-proof sealing ring comprises a primary body and a mating body.
一种带有防尘密封环的气缸，由动体和静体组成。
ip.com - The utility model is compact in structure and beautiful in appearance with the dust-proof sealing ring which is capable of effectively preventing outside dust coming into the cylinder.
本实用新型结构紧凑、外形美观，并 带有防尘密封环，可有效防止外界灰尘进入气缸。
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