If touching sign, display this little cartoon bubble.
如果触摸那个符号，就会显示那些卡通小泡泡。
2
As yet gold's price chart does not display the classic bubble characteristic whereby the pace of increase seems to accelerate (although silver has been conforming to that pattern lately).
According to the basic principle of the digital image, this paper proposes a new display system, namely, "bubble imaging.", and focus on key issues of this system.