ประโยคภาษาจีน : 中文句子 |
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duì 对 suān jiǎn dù 酸碱度 yǐng xiǎng 影响 pāo tóng 泡桐 mù cái 木材 sè zé 色泽 jìn xíng 进行 le 了 yán jiū 研究 bìng 并 duì 对 ruò jiǎn 弱碱 róng yè 溶液 fáng zhǐ 防止 pāo tóng 泡桐 mù cái 木材 biàn sè 变色 de 的 zuò yòng 作用 zuò 做 le 了 shì yàn 试验 yǔ 与 fēn xī 分析 |
An experiment was conducted to study the effects of acid and alkali on paulownia wood color. The protection of weak base solution against discoloration of paulownia wood was also analysed. |