隐身药水英文

　　The ink had faded to invisibility.

　　墨水已退色看不见了。

　　The method had advantages of large capability and good invisibility.

　　该方法具有隐藏容量大和隐蔽性强的特点。

　　Simulated results show that watermark invisibility is good.

　　仿真结果表明，水印不可见性好。

　　So it's a magic potion?

　　那么，这是个神药？

　　Use gauze to filter the decocted herbal potion.

　　用纱布过淋煎好的中药。