二百五十多年前的惠更斯目镜今天还在广泛使用.The Huygens ocular , which dates back over 250 years is still in wide use today.此时场镜上的划痕和小点会在接目镜中看见.Then the scratches and spots on the field lens would be visible at the eye lens.在这两种仪器中, 物镜所成的象都是通...
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?...
The private sector, by contrast, has plenty of money to spend.相比之下，私营部门就有很多钱可供开销。Hungary, by contrast, reacted calmly to events in Yugoslavia.相比之下,匈牙利对南斯拉夫发生的一系列事件反应平静.By contrast, the comparable figure for the Netherlan...