Dust storms, volcanic eruptions, wildfires, and salt spray from the winds over the ocean are the most common and abundant producers of aerosols.
由风传来的的沙尘暴、火山灰、野火灰以及来自海洋的浪花都是悬浮微粒最为普遍、最为丰富的来源。
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Environmental Protection: Use environmentally friendly ink, non-toxic, no pollution was spray products, pharmaceuticals, food and beverage producers identify the preferred device.