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With the light microscope these stacks are just visible as grains ( grana ).
可以用光学显微镜观察到这些堆积成颗粒状的物质 ( 质体基粒 ).
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The stacks of thylakoids are called grana, which are also joined together by membranes.
成堆的类囊体叫作质粒, 它们之间也是由膜相连的.
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The chloroplasts in the swamp reed were round-shaped with poorly developed grana.
芦苇是一种多年生水生草本植物,其典型生境是淡水或含盐的沼泽、河边或湖边.
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