卡西尼号远离土星环而观察到的每个信号的变化提供了一份环材料分布的侧写。 这是一个距土星距离的函数，或是一个光学深度剖面。
The observed changeof each signal as Cassini moved behind the rings provided a profile ofthe distribution of ring material as a function of distance fromSaturn, or an optical depth profile.
比如，几乎在每个页面上，ChangingThePresent.org(参阅侧栏)都有某些用户数据是根据当前登录的用户而变化的。
For example, on just about every page, ChangingThePresent.org (see sidebar) has some user data that changes based on the current logged-in user.
侧板后掠角大小和整流罩位置变化时，对进气道的质量捕获、总压恢复系数和隔离段出口流场的均匀性等都有一定的影响。
Changes of sidewall sweep Angle and cowl position can influence inlet performance such as mass capture, total pressure recovery coefficient and uniformity of isolator exit flow field.
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