The effect of v -arninopropyl sodium silicate and poly ether-bearing organ di-sodium silicate is better than sodium silicate.
结果表明,有机硅酸盐有一定的缓蚀性能,其中,胺丙基硅酸钠和聚醚有机二硅酸钠的缓蚀效果比硅酸钠好。
The monomer was polymerized in aqueous solution with V-50 as initiator, and the water-soluble functional poly (aminoethyl methacrylate hydrochloride) (PAMA) was synthesized.
以V - 50为引发剂,单体经水溶液聚合得到水溶性功能聚合物聚氨乙基甲基丙烯酸酯盐酸盐(PAMA)。
Rubber poly v-belt is the new type transmission belt with a lot of ad-vantages.
多楔带作为一种新型的传动带,具有许多优点。
Rubber poly v-belt is the new type transmission belt with a lot of ad-vantages.
多楔带作为一种新型的传动带,具有许多优点。
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