The stem sap flow of T. ramosissima presented a single-peaked curve, with an obvious day and night variation rhythm and fluctuated with environment factors.
多枝柽柳的茎干液流呈单峰曲线型，有明显的昼夜变化规律，茎干液流随环境因子变化而波动；
As ocean environment is complicated and varied, it makes sound signals strongly distorted and fluctuated during their transmission through underwater sound channel.
由于海洋环境条件的复杂多变，使得声信号在海洋信道中的传递存在着强烈的畸变和涨落。
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