The number concentrations of nuclei mode increase with the increase of load at high engine speed, and the number concentration of nuclei mode varies little with load at middle engine speed.
中间转速下积聚模态峰值粒径随负荷增大先增大后减小，高转速下积聚模态峰值随负荷变化无明显变化。
The particles size distribution indicated that the ratio of fine particles increased while all of the columns of nuclei, accumulation and coarse mode increased.
核模态、积聚模态和粗模态的气溶胶粒子数柱总量均增加，其中细粒子所占比例明显升高。
The particles size distribution indicated that the ratio of fine particles increased while all of the columns of nuclei, accumulation and coarse mode increased.
核模态、积聚模态和粗模态的气溶胶粒子数柱总量均增加，其中细粒子所占比例明显升高。
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