That helps keep the plant's chemical structure intact despite all that extra metal.

使这种植物在高浓度镍的环境里仍保持化学结构不被破坏。

The reporter described large cranes being used to break up major parts of the plant's structure.

这名记者描述了一些大型起重机用来切断该厂一些大型结构的景象。

Only plant cells have a cell wall, which is made of rigid cellulose that gives the plant structure.

但只有植物细胞有细胞壁，它是由硬质纤维素组成，能形成植物的支撑架构。

But after centuries of work examining plant structures — and more recently, plant DNA — botanists have reached a general consensus on the broad evolutionary history of plants.

但是，经过几个世纪对植物结构的研究，以及最近对植物 DNA 的研究，植物学家对植物的广泛进化历史达成了普遍共识。

She said students must take classes in plant structure " so they understand what it is exactly that they are drawing. It requires a strong basis in botany, " she said.

她说，学生必须上植物结构课，" 这样他们才知道他们在画什么。植物绘图需要扎实的植物学基础。"

And while it's hard to catch an insect in the act of pollinating, the fossil record gives us several lines of indirect evidence of pollination, like specialized plant structures, specialized insect mouthparts, and pollen grains.

虽然很难捕捉到正在授粉的昆虫，但化石记录为我们提供了几行授粉的间接证据，例如特殊的植物结构、特殊的昆虫口器和花粉粒。