Diacetone acrylamide ( DAAm ) was prepared by reacting acrylonitrile with diacetone alcoholammonia.以二丙酮醇和丙烯腈为原料,利用简便、温和的反应条件合成新型乙烯基功能单体-双丙酮丙烯酰胺.Crosslinkable acrylic polymer emulsion was obtained by adding acrylic polyme...
这些超高频能传送均衡的宽频信号.These extremely high frequencies allow proportionately wider band - width signals to be transmitted.用途: 用于超高频频率转换, 负载振荡器, 宽频放大.Purpose: UHF frequency converter, local oscillator, wide band amplifier.用途: 用...
However, Nicholas Lardy a fellow at the Peterson Institute, disagrees.但彼得森国际经济研究所(PetersonInstitute)的尼古拉斯?拉迪( NicholasLardy )持有异议.In the wool - carpeted master bedroom, Nicholas's walnut table accompanies Kollar...
Dan was in his cabin, staring out of a porthole.丹在自己的船舱里朝舱外凝视着。He paid for and was assigned a cabin in first class.他付完钱后被安排到了头等舱。Looking through the cabin window I saw the flicker of flames.透过船舱的窗户我看到了闪烁的火光。...
还没看到他们，我便听到他们穿过矮树丛过来的声音。I heard them coming, crashing through the undergrowth, before I saw them.一顶橄榄色帐篷扎在树丛当中。An olive-coloured tent stood within a thicket of trees.我们蹲在树丛里。We were crouching in the bushes....