Several years' practice indicated that the effect is good.
几年实践表明，效果甚佳。
The practice indicated that the system is convenient and rapid, scientific and accurate.
应用实践表明，该系统具有方便快捷、科学准确的优点。
Practice indicated that this process satisfied the requirement of production.
经生产实践证明，该工艺满足了生产需要。
Practice indicated that this process satisfied the requirement of production.
经生产实践证明，该工艺满足了生产需要。
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