If you are making your own bubble solution, mix the detergent and water.
如果你正在制作自己的泡沫溶液，各种洗涤剂和水。
Category II: liquid ink in pens and similar materials in liquid form appearing as such in the toy (e. g. glue sticks, slimes, bubble solution).
II类材料：在玩具上呈固态或液态的类似材料(例如胶水、粘液、泡泡水)。
With the consideration of surface tension the boundary integral method and numerical solution method for simulation of a cavitation bubble collapsing near a rigid wall are derived.
导出了考虑表面张力影响下模拟固壁附近溃灭空化气泡特性的边界积分方法及数值求解方法。
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