In other words, the benefit tea and coffee drinkers perceive after a brew stems from removing their caffeine withdrawal symptoms, rather than any net gain in alertness.
换句话说，饮用者喜欢茶和咖啡的原因是，它们能消除咖啡因戒断症状，但这些饮料对大脑灵敏度的提高毫无帮助。
Therefore, the host preference of Alewocanthus spiniferus to different tea varieties could be basically reflected by the oviposition number per unit in the net laboratory.
因此，以网室内单位叶面积产卵量为指标基本上能反映出黑刺粉虱对不同茶树品种的寄主选择性。
Effect of different densities of Empoasca vitis on the yield loss rate and the damage indexes of fresh tea leaves was evaluated with the net method.
利用网罩法测定了假眼小绿叶蝉不同虫口密度对茶鲜叶产量及受害指数的影响。在此基础上，建立了不同虫口密度与茶鲜叶经济损失率线性回归方程。
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