Position camera on tripod and prefocus on inside of tank.
把相机固定于三脚架，预先对水缸内部调焦。
But in launch position, the orbiter is perched on the side of its 15-story external fuel tank and flanked by two solid rocket boosters.
但在发射点，轨道器一面是15层楼高的外挂燃料箱，两侧是两个固体火箭助推器。
Note - position tank so that there will not be a shadow from your hand when dropping the fruit.
注意：摆放水缸应选择合适的角度，以免扔水果时手的阴影出现在画面里。
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