这种实践的附带好处就是可以显著地降低解决方案的成本。
A side benefit of this practice can be a much less expensive solution as well.
实践证明，方案技术上合理，降低了施工成本。
Practice has proved that the technology is reasonable and the cost of construction is reduced.
实践证明，方案技术上合理，降低了施工成本。
Practice has proved that the technology is reasonable and the cost of construction is reduced.
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