back crossing信息详情
回交
crossing───v.横越;交叉;反对;横传;画横线于(cross的现在分词);n.人行横道;十字路口;(海洋或宽阔江河的)横渡;(国与国的)过境处;穿越;中殿和耳堂相交处;杂交
no crossing───禁止穿行;请勿跨越
railway crossing───公路铁路交叉口;铁路平交道口;铁路道口
book crossing───图书交叉
dulcimer crossing───扬琴穿越
crossing over───互换;[遗]交换,交叉
pedestrians crossing───人行横道
crossing out───删去;注销
anile crossing───阿尼尔交叉
Martin knew of the enormous gulf between him and this man - the gulf the books had made; but he found no difficulty in crossing back over that gulf.───马丁知道他跟自己之间有一道很大的鸿沟——那是读书造成的。他要是愿意跨回去倒也容易。
This was only the third vehicle crossing of Antarctica in history, and the first to get there and back.───这是历史上仅有的第三次驾驶交通工具的南极穿越,更是第一次往返。
great relief to be back on dry land after such a rough crossing.───渡过汹涌澎湃的大海回到陆地后使人长舒一口气。
Back crossing allows a desirable trait to be introduced into an existing useful line.───回交可以将一个需要的性状引入一个已存在的有价值繁殖系。
To eliminate the undesirable characteristics and develop useful ones, back crossing is carried out.───回交可以消除不需要的性状以及加强有用的性状。
All of the F1 plants showed complete male sterility, and the seeds of BC1 were obtained by back-crossing with Chinese Spring pollen.───杂种F1高度雄性不育,用中国春花粉与其回交可获得BC1代种子。
They flung themselves on him, yanked his legs back, crossing them so that his knees splayed out.