Then from the equations of the matrix elements the equation of the usual two composite boson is separated, as it is a three-dimensional equation, the ghost states disappear.
而后由矩阵元方程分离出通常两个复合玻色粒子满足的等时方程，它是一个三维方程，因此无鬼态。
The eastern cougar is often called the "ghost cat" because it has been so rarely glimpsed in northeastern states in recent decades.
东部美洲狮经常被叫做“鬼猫”，因为近几十年来在美国东北部各州这种动物的影子着实难得一见。
THE ghost of Japan’s “lost decade” haunts the United States.
“失去的十年”是日本经济挥之不去的阴霾，现在又缠上美国了。
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