crossing over
['krɔsiŋ'əuvə]
交换，交叉
同义词
参考例子
1.Today, graffiti has entered the cultural mainstream, crossing over to the realms of studio art, design and advertising.
今天，涂鸦已经进入了文化主流，跨越的领域工作室艺术，设计和广告。
2.These is much more here - as we time traveled (note the arm with the wrist watch crossing over from the left of me passing over my mouth.
这些是这里更多的-当我们时间旅行（注意手和手腕从我的左边看经过我的嘴看交叉处。
3.Concerns with terrorism have led to added layers of security at border checkpoints , where people crossing over are photographed and questioned.
因为恐怖主义的原因，在边防检查时增加了关于安全层面的检查点，并且对通关的人们进行拍照和询问。
英文解释
n.
1.the interchange of sections between pairing homologous chromosomes during the prophase of meiosis
网络释义
crossing over
交换; 互换﹔交换; 横越; 来来往往;
crossing-over
互换; (交换)：发生在减数分裂中染色体间互相交换物质，引起遗传重组。; 交换[减数分裂过程中染色体间遗传物质的交换; 交叉，跨越;
chromosome crossing-over
染色体交换;
crossing-over rate
释义：交叉率;
crossing -over suppressor
交换抑制基因;