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- Evaporation influenced the soil water distribution mainly in the upper soil layer at the initial stages of irrigation. Less irrigation frequency would lead to greater uneven water distribution. 蒸发和灌水频率对风干土壤中水分分布的影响表现为：1)有、无蒸发条件下土壤水分差异在灌水初期主要体现在上部土层，此时，灌水频率越低，此区水分差异越大；
- Experimental results indicated that the lower soil moisture tension practiced by increasing irrigation frequency, resulted in higher fruit yield, number of fruiting cladodes and flowers. 田间试验结果显示，土壤水分境况对红龙果全年总产量、结果枝数及开花数有显著影响。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- irrigating frequency 灌水次数
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- The water in the irrigating ditch was well up. 灌溉渠里涨满了水。
- The farmer is irrigating in his field. 那个农夫正在田里灌溉。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- The farmer is irrigating in his field. 那个农夫正在田里灌溉。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- He had been in command at the irrigating ditch the day before. 上一天，在灌溉渠边，是他担任指挥的。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- Watch soil moisture carefully at the end of the irrigating season. 看墒情仔细在年底灌溉季节.
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。
- Small dissipation factor at high frequency. 高的频率和小的损耗因素.
- Spread the palpitate frequency love till ending. 循着心跳的频率爱到永不分离。
