1. The types and application scope of stopple plugging technologies for Chinese urban gas pipeline are introduced. 介绍了我国城市燃气管道带压不停输封堵技术的种类和适用范围。
2. Distillation: Take off clubbed glass stopple, imbibe di gest solution by pipet and transfer it carefully to the bottom of small glass cup. 蒸馏：取下棒状玻塞，用吸管吸取消化液，细心地插到反应室小玻璃杯的下方，塞紧棒状玻塞。
3. At the meeting for bottles and stopple matching size confusing issue, participants agreed that it should be put in place effective industry recommended specifications. 会上针对目前玻瓶与胶塞配套尺寸比较混乱问题，与会代表一致认为应该制定有效的行业推荐的规格尺寸标准。
英英解释
n.
1. blockage consisting of an object designed to fill a hole tightly
2. close or secure with or as if with a stopper
