1.In addition,a new structure,frontal cirrus between the frontal cilia and laterofrontal cirri,is found only on the gill surface of Corbicula fluminea.

1.此外，仅在河蚬鳃表面前前侧之间，观察到一种新的构——前触。

2.Analogous to a sundog or parhelion, the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds.

2.类似环日的形成一样，在高中，月光通过稀薄、具有六边形状的冰晶时产生了幻月。