在训练或比赛前应避免像汽水或糖棒一类的含糖的东西。

Avoid sugary stuff like sodas or candy bars right before you practice or compete.

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研究了一类随机非线性系统的鲁棒自适应跟踪问题。

Robust adaptive tracking problems for a class of stochastic nonlinear systems were investigated.

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本文研究一类抛物型发散梯度折射率棒透镜中高斯光束的传播。

Gaussian beam propagation through a kind of parabolic divergent GRIN rod lenses is studied.

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