By the amide and aliphatic chain or alicyclic base line base connected criminal macromolecules.由酰胺链与脂族基或脂环基连接的线刑大分子构成.In this paper , two unsaturated alicyclic nitrogen heterocyclic crownethers were synthesized by phase ...
配件有: 刮胶, 钢板, 油墨等行业.Accessories include: blowing plastic, steel, ink and other industries.高精度网线辊式涂布及特殊的横向刮胶装置,匀胶辊, 胶剂循环装置.High precision net line cylinder type coating cloth series, even rubber cylinder, gluerecyling devi...
这团凝固的污物堵塞了过滤器。This congealed muck was interfering with the filter.过滤器无法过滤掉水中的所有污染物。Filters do not remove all contaminants from water.过滤器会滤掉水中的大部分杂质。A filter will remove most impurities found in water....
One of the teachers really has it in for Charlie—she shouts at him all the time.有一位教师确实和查理过不去——她老是对他大声叫嚷。She rose,smiling,to shouts of “Bravo!Bravo!”她起立向“干得好”的叫声微笑。They interrupted the customary one minute's silence...