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serie b
Dopo il successo dello Spezia che ieri ha battuto il Modena, il Pisa risponde vincendo in casa ...
instrument
15 天
德国S+H NMP浓度计 在线浓度传感器
指在一定温度及压力下(通常是温度为298K,压力为100kPa的标准状态),一定质量的溶质溶解于溶剂中产生的热效应。等于一摩尔的溶质溶解在大体积的溶剂时所发出或吸收的热量。 NMP 是高效选择性溶剂,高沸点, 腐蚀性小、溶解度大, 粘度低, 挥发度低, 稳定性好, 易 ...
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