In the past, official GDP figures have been much lower than his own estimates, but now the gap has disappeared. In other words, the acceleration in growth may be largely illusory.
过去官方的GDP数值总是大大低于他们自己估计的，但现在却不会这样了换句话说，这种快速增长很可能是有水分的。
Under the external acceleration, the coupling coefficient is a function of gap spacing between the two waveguides.
在外界加速度作用下，直波导和环形波导的耦合系数是两波导间距的函数。
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