印刷后要在2小时内回流焊膏.Reflow solder paste in 2 hours as soon as possible after printing.SMT生产工艺决定了电子产品的可靠性, 焊膏印刷质量的好坏是其关键因素之一.Solder - paste printing plays an important in SMT production, and affects the quality of assemblies.焊膏...
他心上的新创口, 揭 着便痛.The new wound in his heart gave him pain whenever anyone " touched " it.于是塞谬尔医生运用激光消除创口,而不会损伤胃壁.Now to destroy lesions by laser beams without damaging the stomach wall , Doctor Sameul fires.皮肤上贴过创口贴后过敏怎么办?...