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- Poly(ethylene-2,6,-naphthalate) (PEN) is a newly developed polyester. The chemical structure of PEN can be described by replacing the benzene ring in poly(ethyiene terephthalate) (PET) with the stiffer naphthalene ring. 聚萘二甲酸乙二酯(PEN)是一种近年来获得较大发展的高性能聚酯材料，其分子结构与聚对苯二甲酸乙二酯(PET)相类似，可看作是由PET链中苯环由刚性更大的萘环所替代的产物。
- The cure reaction and thermal properties of a novel dicyanate ester resin containing naphthalene ring were characterized by differential scanning calorimetry(DSC) and thermogravimetric analysis(TGA). 采用差示扫描量热(DSC)和热失重分析(TGA)研究了含萘环结构的氰酸酯树脂的固化反应和耐热性能。
- dicyanate ester resin containing naphthalene ring 含萘环氰酸酯树脂
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- Synthesis and Characterization of Polyether ketone ether ketone ketones Containing Naphthalene Ring 含萘环结构的聚醚酮醚酮酮的合成与表征
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
- Our family reunions are always three ring circus. 我家合家团聚的场面总是热闹非凡。
- Keywords in situ FTIR;dicyanate ester resin containing naphthalene ring;bismaleimide triaime resin;cure mechanism; 原位红外光谱;含萘环氰酸酯树脂;双马来酰亚胺三嗪树脂;固化机理;
- I am sorry-she's out. Can you ring again later? 对不起－她出去了。你过些时候再打电话来好吗？
- The boys and girls made a ring round us. 男孩和女孩围着我们站了一圈。
- Please ring for the attendant if you need anything. 如果需要什么，请按铃找服务员。
- The music was so loud it made my ears ring. 音乐的声音太大了，把我耳朵震得直响。
- The policeman felt that my story didn't ring true. 警察认为我讲的话听起来不可信。
- She wears a ring round her wrist. 她的手腕上戴着一只镯子。
- Ring the correct answer with your pencil. 用铅笔圈出正确的答案。
- A pull on the rope will make the bell ring. 一拉绳子钟就响。
- He have scarcely get home when the telephone ring. 他一回到家电话铃就响了起来。
- I'll ring you up some time during the week. 本周的某个时候我给你打电话。
- The jeweller will engrave the inside of the ring with her name. 珠宝匠将在戒指的内表面上刻上她的名字。
