怎么让水瞬间结冰?diy科学实验{!--PGC_VIDEO:{"thumb_height":360,"vname":"u4ec0u4e48u6837u7684u65b9u6cd5u80fdu8ba9u6c34u77acu95f4u7ed3u51b0uff1fu8fd9u4e0du662fu9b54u672f,u8fd9u662fu79d1u5b66!。...