、。
For a moment she was as if frozen in place.
Literal
She [topic-は] for-a-little-while, [froze-up-凍りついた] [as if-ようになっていた].
凍りつく is a vivid compound verb — 凍る ('freeze') + つく ('attach, settle into') — meaning 'freeze up, become frozen in place,' often used metaphorically for sudden paralysis from fear or shock. The frame ~たようになる ('become as if X-ed') uses ような (the attributive of the simile auxiliary ようだ) + に + なる ('become') to mean 'come to be in a state resembling X.' Past tense になっていた ('had become') gives a sustained past condition — she was caught in that frozen-feeling state for a duration.