benzoxazine造句
A single - ring
benzoxazine was synthesized by solvent - free method.
用无溶剂法合成了一种单环苯并嗪.
Curing shrinkage, temperature and curing enthalpy of
benzoxazine based on diphenyl oxide resin were investigated.
研究了苯并口恶嗪二苯醚树脂固化时的体积收缩率 、 固化温度和固化焓变等.