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The influences of mole ratio of ethanediol and naphthenic acid,a mount of catalyst,reation time,reation temperature etc.on est erification were discussed and the suitable processing conditions were found.

文摘：介绍了用氧化亚锡非酸性催化剂催化合成环烷酸季戊四醇脂的方法，通过讨论醇酸摩尔比、催化剂用量、反应时间、反应温度等因素对该脂化反应的影响，从而确定了适宜的工艺条件。

An autonomous optical navigation scheme for cruise phase is presented in this paper, in which the relative position for probes is based on the star light and body edge data that is measured by star sensor and optical navigation camera respectively.

提出了一种用于探测器在巡航段的自主光学导航方案，该方案利用光学导航相机以及星敏感器，通过测量星光信息以及天体边缘的信息，得出了探测器的相对位置。