Heterochromatic areas tend to stain intensely during interphase, sometimes forming condensed masses called chromocentres.是什么意思？

Heterochromatic areas tend to stain intensely during interphase, sometimes forming condensed masses called chromocentres.

异染色质部分在间期有染色很浓的倾向, 有时形成浓缩的块状,这些块状叫做染色中心.

heterochromatic

adj. 包含不同颜色的；

areas

地区，区域(area 的复数形式)，面积，领域；

例句
It has been apparent that in other areas standards have held up well...
显然，这些标准在其他地区执行得很好。

tend

vt. 照料，照顾，护理，照管，管理；vi. 倾向（于），趋向（于），伺侯，招待，关心，注意；

例句
We tend to think in absolutes.
我们思考问题倾向于绝对化。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

stain

vi. 弄脏，污染，被玷污；vt. 玷污，染污，败坏（名声），给…染色；n. 污点，瑕疵，着色剂，色斑；

例句
...the stain on our living-room carpet.
我们客厅地毯上的污迹

intensely

adv. 强烈地，极度，剧烈地；

例句
He was intensely eager, indeed avid, for wealth.
他嗜财如命。

during

prep. 在…的时候，在…期间，当…之时，其间；

例句
...the accrual of funds used during construction.
建设过程中资金的累积

interphase

--

例句
Repeat moving chessmen until all chessmen are interphase with black chessman and white chessman.
重复移动棋子,直到所有棋子是黑色相间的棋子和白棋子.

sometimes

adv. 有时，间或，时

例句
I want to work at home on a Tuesday but as it turns out sometimes it's a Wednesday or a Thursday.
我想周二在家工作，但实际上有时却是周三或是周四。

forming

n. 形成，组成，构成，编成；v. 形成，构成，产生( form的现在分词 )，是，（使）成形，结成（友谊）；

例句
Everybody knows they haven't got a hope in hell of forming a government anyway.
众人皆知他们根本就无力组建政府。

condensed

v. （使）变稠或变浓，浓缩( condense的过去式和过去分词 )，（使）凝结，简说，摘要，简述；

例句
The English translation may have been condensed into a single more readable book.
英译本可能被压缩成了更具可读性的单行本。

masses

n. 民众，劳动阶层，大量( mass的名词复数 )，大多数，[物理学]质量，大量的东西；

例句
He never understood how to organize or compress large masses of material...
他从来就不懂如何对大篇的材料进行整理或精简。

called

v. 叫( call的过去式和过去分词 )，通电话，认为，估计；

例句
He has also called for an acceleration of political reforms.
他同时呼吁加快政治改革的步伐。