This article gets the following conclusion through the demonstration analysis: 1. In long time, the GDP fluctuation is the TFP fluctuation's Granger reason.
本文通过实证分析研究，得到如下结论：1、在长时期内，GDP波动是TF P波动的格兰杰原因。
The output of the laser is very stable, and the fluctuation of output power is less than 0.5% under long-time high-power operation.
激光器具有非常稳定的输出，在长时间运转条件下，输出功率波动小于0.5%。
Under long time settlement foreign exchange system, enterprise ability is low in adjusting foreign exchange net cash, fluctuation of exchange rate result in a great loss of net cash.
在长期实行的结售汇制定下，企业调整外汇净头寸的能力非常差，汇率波动对净头寸造成的损失是巨大的。
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