principal focus
短語(yǔ)詞組
- principal l focus 主焦點(diǎn)
- the principal focus system 主聚焦系統(tǒng)
- secondary principal focus 后焦點(diǎn)
- principal focus system 主聚焦系統(tǒng)
- anterior principal focus 前主焦點(diǎn)
- the principal focus 主焦點(diǎn)
- principal focus distance 主距 返回 principal focus