用四溴双酚a、环氧氯丙烷和丙烯酸为原料合成了阻燃型乙烯基酯树脂，其阻燃性能良好。

Flame retardant vinyl ester resin using tetrabromo bisphenol a, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

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结论丙烯基硫脲可抑制酚氧化酶活性而对钉螺、螺卵的成活及其产卵量、卵壳的形成、孵化率均有影响。

It is concluded that acryl thiourea effects not only snail eggs, but also their rates of egg-laying, its egg shell and the rate of breeding.

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结论丙烯基硫脲可抑制酚氧化酶活性而对钉螺、螺卵的成活及其产卵量、卵壳的形成、孵化率均有影响。

It is concluded that acryl thiourea effects not only snail eggs, but also their rates of egg-laying, its egg shell and the rate of breeding.

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