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- Polyploids can arise by somatic doubling, by the fusion of unreduced gametes, and by means of a triploid bridge. 多倍体产生与体细胞染色体的加倍、未减数配子的融合以及一种叫三倍体桥的方法。
- The major cytological mechanisms of polyploid formation are union of unreduced gametes, somatic doubling and polyspermy.And union of unreduced gametes is the most important mechanism. 多倍体主要是通过未减数配子融合，体细胞染色体加倍以及多精受精三种方式起源的。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- Somatic cell hybridization is technique. 体细胞杂交是一种技术。
- A couch performs a double service. 躺椅有双重的服务。
- Look, double yellow lines you mustn't park here. 喂，这是双黄线--不能在这儿停车。
- Please double up the chair and put it aside. 请把椅子折起来放在一边。
- Somatic Embryogenesis of Aesculus hippocastanum L. 欧洲七叶树体细胞胚胎发生研究。
- For strong sewing use double, not single thread. 为了缝得牢，用双线，而不要用单线。
- Somatic cells are produced from preexisting cells. 体细胞产生自原始细胞。
