While pushing inward the operating part, two connecting arms bend inward and close to each other for the liquid staining arms to inserting into the bubble liquid connector to stain liquid.

操作器连接在沾液部的连接臂上，手握柄通过支杆、中间支轴与连接臂枢接；

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While pushing inward the operating part, two connecting arms bend inward and close to each other for the liquid staining arms to inserting into the bubble liquid connector to stain liquid.

操作器连接在沾液部的连接臂上，手握柄通过支杆、中间支轴与连接臂枢接；

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