发布时间:2025-02-01 21:59:38
压力不是问题。主要是地暖的阻力大了,水走了近路,不往你们家走!
安泵是对的,用“格来福”泵,丹麦的,质量可靠,噪音小,适合家用。泵的压力不需要很大,几米扬程就够了。卖泵的也会帮您选的。
鉴定钙离子和镁离子时为什么用氢氧化钠及ph10的缓冲溶液控制ph值
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