观测者

The technique of the drawing depends on the ability of the observer.

绘图技术取决于观测者的能力。

Of particular importance to the observer is the position of the terminator.

对于观测者特别重要的是明暗界线的位置。

The observer should always make full notes about the atmospheric conditions.

观测者要对大气条件作详细记录。

Experienced observers concentrate on systematic investigations.

有经验的观测者致力于系统的研究。

Indispensable for the observer is a good star atlas, containing all naked eye stars.

观测者必须具备一份包括肉眼能看到的所有天体的好星图。