这些关键特征包括细胞体积、细胞形状、染色质分布、核内空隙以及核浆体积比值。
These features include cell volume, cell shape, chromatin distribution, intranuclear voids, and the ratio of nuclear to cytoplasmic volume.
韦基奥指出，雌舡鱼会在壳内的空隙处产下大量的卵，而在海底栖息的栖章鱼往往把卵产在岩石缝里。
Female argonauts tuck masses of tiny eggs into spare space in the structure, Vecchione notes, much as bottom-dwelling octopuses protect their eggs in rock crevices.
XXX方向的列车即将进站，请在黄线内候车，注意站台和列车之间的空隙。
The XXX train is approaching. Please remain behind the yellow line and mind the gap.
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