发布时间:2025-01-30 01:12:00
鱼缸的水上面有很多的泡沫,是因为鱼缸里面的水脏了,鱼饵们的排泄物或者是投喂的食物没有及时的吃完就会导致水质变质,会进行发酵,所以就会出现很多的泡沫,这个时候就要及时的换水了,不然会阻挡阳气进入水中,导致鱼儿缺氧的。
SKF 294/600 轴承SKF 294/600 推力滚子轴承尺寸参数
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