The syntheses, properties and applications of benzocyclobutene monomer and polymers are introduced.本文介绍了苯并环丁烯单体及树脂的合成 、 树脂的性能及应用.Proteins and DNA are polymers.蛋白质和脱氧核糖核酸都是聚合体.Of this quantity 15 % was added to thermoset ...
The prices of polymers and suchlike materials will decrease.聚合物及类似材料的价格会下降。Then we got involved with trying to find polymers that attenuate radiation.接著我们致力于找出能够减弱辐射的聚合物.Proteins and DNA are polymers.蛋白质和脱氧核糖核酸都是聚合体....
I felt loath to sully the gleaming brass knocker by handling it.我不愿意伸手去抓那闪亮的黄铜门环，怕把它弄脏。Number 30 has a red door and a brass knocker.30号有一扇红门和一幅铜门环.The knocker is oblong in shape, and of the kind our ancestors called " ja...
以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸高铈为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl butyrate was synthesized by using ceric sulfate as the catalyst.以硫酸铈铵为催化剂,...
将油加热，然后放入鱼片煎炸。Heat the oil and deep-fry the fish fillets.猪肉炼出的油可用来煎炸食物.The grease from pork can be used for frying.把虾用半煎炸法炸至金黄,取出沥油,上碟.Shallow - fry the shrimps until golden brown . Drain well . Dish....
因为天气暖和，戴维只穿了一件白色的棉衬衣。Because it was warm, David wore only a white cotton shirt.用一根棉签把轮廓抹花。Smudge the outline using a cotton-wool bud.多数小地毯是简单的棉质方块垫。Most of the rugs are simple cotton squares....