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。
It has focusing device, which can make adjustment of astigmatism and prefocus.
具有调焦装置, 可以进行散光和聚光调节。
英文例句大全为您提供prefocus英文例句大全,prefocus英文造句,关于prefocus的英语句子,单词prefocus怎么造句,prefocus英文例句大全有哪些,哪些英语句子是关于prefocus,英语单词prefocus的句子,单词prefocus如何造句,prefocus怎么造句等。