7. Kev txiav tsis yog perpendicular thaum txiav cov khoom tuab?

Yog vim li cas 1: Lub platform ua haujlwm tsis yog perpendicular rau lub taub hau laser.

Kev daws teeb meem: Kho lub platform ua haujlwm kom nws perpendicular rau lub taub hau laser.

Vim li cas 2: Kev tsom xam tsis raug.

Kev daws teeb meem: Rov kho dua.

Yog vim li cas 3: Kev xaiv Lens Focus tsis raug.

Kev daws teeb meem: Hloov nrog lub lens tsom xam kom raug.

Tawm Koj Cov Lus:

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