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单词
principal ray
释义
principal ray
noun
1.
:
principal visual ray
2.
:
the one ray of the rays entering an optical instrument from any given point of the object that passes through the exact center of the aperture stop
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tighten
tight end
tightener
tightening
tightening pulley
tighten one's belt
tighter
tightest
tightfisted
tightish
tight joint
tight-knit
tight-laced
tight-leg
tightlining
tight-lipped
tight lock
tightlock
tight-locked
tightly
tight-mouthed
tightness
tightrope
tights
tight sap
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更新时间:2025/7/31 5:39:58