Negative effect of practice has its existing reason and various forms different characteristics in different historical stages.

实践负效应有其存在的原因和不同的表现类型，在不同的历史阶段各有其不同特点。

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The effect of practice showed that the seepage prevention wall is beneficial to reducing the seepage water head, decreasing the seepage line inside dike and escape gradient.

实际应用显示钢板桩的实施有利于减小渗流水头、降低堤身浸润线和出逸比降。

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Constant practice has such an effect on memory as to lead to skillful performance on the piano, to recitation of a poem, and even to reading and understanding these words.

不断的练习对记忆有很大的影响，有助于熟练地弹奏钢琴，背诵诗歌，甚至阅读和理解这些单词。

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The effect of this practice is especially palpable in the region that was the birthplace of Christianity.

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When it does, the introduction of stem cell medicines will have a profound effect on the practice of medicine, and we can expect cocktail conversations to revolve around the potential stem cells have for saving lives, rather than beginning them.

FORBES

Japan, however, is also suffering an effect that arises from its practice of underpaying young workers as part of an implicit bargain in which, after automatic promotion, they will be overpaid when older.

ECONOMIST: Social conventions and demography add to the sclerosis