The disadvantages are mainly high equipment costs and plugging of the lines by sediment, salt encrustation, or algae.

缺点主要是设备费用高，管道易被泥沙、盐分结晶或藻类植物堵塞。

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The disadvantages are mainly high equipment costs and plugging of the lines by sediment, salt encrustation, or algae.

缺点主要是设备费用高，管道易被泥沙、盐分结晶或藻类植物堵塞。

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