Angles of less than 90 degrees are called acute angles.
小于90度的角叫锐角。
Angles of less than 90 degrees are called acute angles.
小于90度的角叫锐角。
The characteristic of hyphae are regular width and septation with typical branching in acute angle (about 45 degrees) in PAS stain.
片经由PAS染色清楚可见麴菌菌丝，其具有分隔，且分枝呈锐角状，
45度角，为其特徵。
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