释义 |
ring-closure 英'rɪŋkl'əʊʒər美'rɪŋkl'əʊʒər BNC²³⁶²¹³⁺¹ 基本例句 闭环¹⁰⁰ The production of sodium glutamate with ring-closure technology through membrane separation technique was introduced. 介绍通过膜分离技术开发出来的味精闭环生产工艺路线。 dictall Methods: The preparation of levetiracetam is adopting Late Ring-closure route, which can optimize the condition of the compound ammonolysis process. 方法:采用后闭环路线,优化氨解反应的工艺条件。 chemyq Some main synthesize methods of phenazine by the ring-closure of2- amino or nitro diphenylamine, condensation of ortho phenylene diamine with catechol were introduced. 介绍了吩嗪合成的2-氨基或硝基二苯胺关环反应、邻苯二胺和邻苯二酚缩合反应等主要几种方法。 dictall |