初始效应包括重力和风——但在二次效应层面上，你就得考虑气温和水分变化，材料因负重导致的轻微变形。
Primary effects include gravity and wind - but at a secondary level, you have to think about temperature and moisture changes, the materials slightly deforming under load.
“这些试验的初始目的完全不是为了研究不同作物受气候变化的影响效应，”罗贝尔说明。
"These trials were organized for completely different purposes than studying the effect of climate change on the crops," Lobell said.
考虑到光纤折射率的五阶非线性极化效应，本文对不同初始条件下，光纤中黑脉冲的传输进行了数值模拟分析。
Taking into account the fifth-order nonlinearity in the refractive index of the fiber, the dark pulse propagation in fibers is simulated numerically for the varying initial conditions.
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