present 3. participle t be+ s Da※ 环绕地球的是一层厚度莫测的空气 Surrounding the earth is a layer ofair of unknown thickness. However, remaining open is the question of whether wsr wafer scale integration/ will enjoy a time in the sun 然历,现在的问题是品片规模集成这一技术是否会迅速发展起来 呢? 图8画出的是数字计算机的方框图 Shown in Fig 8 is a block diagram of a digital computer3. participle present past ※ + be + S Surrounding the earth is a layer of air of unknown thickness. 环绕地球的是一层厚度莫测的空气。 However, remaining open is the question of whether WSI [= wafer scale integration] will enjoy a time in the sun. 然而，现在的问题是晶片规模集成这一技术是否会迅速发展起来 呢？ 图8画出的是数字计算机的方框图。 Shown in Fig. 8 is a block diagram of a digital computer