The physical properties of rubber accelerator 2 - mercapto benzothiazole and main methods for its preparation are introduced.介绍橡胶硫化促进剂 2- 巯基苯并噻唑的物理性质和主要的制备方法....
Leona put some detergent into the dishwasher, shut the door and pressed the switch.利昂娜将一些清洁剂放入洗碗机，关上门后按了开始键。Mr. Martino's dishwasher was leaking!原来Martino先生家的洗碗机漏水了!It has a refrigerator, a freezer, an electric stov...
Mrs Glick reined in the horse and stopped at the crossroads.格利克夫人勒住缰绳在十字路口停了下来。Then , all of a sudden, he reined up his tired horse.这时, 他突然把疲倦的马勒住了.The horsemen reined in and shouted at the men behind to turn back...骑手们勒...