Yet somehow, nature is able to simulate this mathematical problem using only N particles.

然而不知为什么，大自然能仅使用 N 粒子模拟这一数学问题。

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Anatase TiO 2 particles were prepared on viscose-based activated carbon fiber (ACF) felts surface via sol-gel method with tetra-n-butyl titanate as precursor and characterized by XRD and SEM.

采用钛酸四正丁酯为原料，用溶胶-凝胶法在粘胶基活性炭纤维(A CF)毡表面制备了锐钛矿型的二氧化钛粒子，并用XRD, SEM进行了表征。

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However, based on the thermodynamics, there are different opinious regarding the analysis of V(C, N) particles in the water-quenched continuously cast slab.

然而，基于热力学平衡考虑，对铸坯中V（C，N）的析出分析存在争议。

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Some recent studies have revealed a significant concentration of particles in near-surface waters in areas of mid-ocean accumulation (N Pacific and NW Atlantic gyres).

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