而脉冲式喷头虽可对灌溉区域进行间断均匀地调节，但费用偏高，广大农民消费不起。
Pulsed sprinkler can irrigate the cropland interruptedly and evenly, however, the price of it is so high that most farmers can't afford to buy it.
运用脉冲响应函数等实证分析方法，检验汇率、股票指数变动对上海银行间同业拆放利率稳定性的影响。
Test the stability of exchange rate, stock indices to Shibor by the use of impulse response function methods and other empirical analysis.
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