Traditional chemical synthesis cannot distinguish between left - and right-handed versions, so they have to be separated afterwards, which is tedious.

传统的化学合成无法区别左右手螺旋，需要在合成后单独进行枯燥的分离。

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It is pointed out that the results of traditional text analysis cannot offer the information of prosody rhythm for speech synthesis and makes it difficult in prosodic parameters prediction.

指出传统意义上文本分析模型，无法体现语音合成中韵律节奏，并使韵律参数的预测变得困难。

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The main content of the existing product produced by a production process of paratoluenesulfonic acid does not exceed 97 percent and cannot meet the requirement of pharmaceutical synthesis.

现有的对甲苯磺酸的生产工 艺生产出的产品，主含量不超过97％，不能满足一些医药合成的需要。

youdao

Without larger vocabularies they cannot do the synthesis of facts and ideas that is the way innovative problem solving happens.

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Traditional chemical synthesis cannot distinguish between left- and right-handed versions, so they have to be separated afterwards, which is tedious.

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