It is known that there are two critical frequencies for a given fill ratio.
可见对于某一给定的充液比，存在两个临界频率。
The screw fill ratio cannot be more than the allowed biggest one in normal operations.
在正常操作中，螺杆的填充率不能大于最大允许值。
Example on right USES a fill light ratio of 1:2 (fill: sunlight) with an on-camera flash.
正确使用例子比1：2的填充光(填：阳光)和一个摄影闪光灯。
Example on right USES a fill light ratio of 1:2 (fill: sunlight) with an on-camera flash.
正确使用例子比1：2的填充光(填：阳光)和一个摄影闪光灯。
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