They staggered in a zigzag across the tarmac.他们深一脚浅一脚，跌跌撞撞地穿过停机坪。The lightning made a zigzag in the sky.闪电在天空划出一道Z字形.The path runs zigzag up the hill.小径向山顶蜿蜒盘旋....
Finally, DNA ligase newly synthesized DNA chain and the original links.最后DNA连接酶将新合成的DNA链与原来的链接上.Methods: The restriction endonuclease and T 4 DNA ligase were used to construct the vector plasmid.方法载体的构建采用限制性内切酶酶切、4DNA连接酶...
The scale of reduction of a microform.缩微印刷品的缩小比例.A device for reading materials in microform, such as microfilm and microfiche.显微阅读器用以阅读缩微成像, 如缩微胶卷和缩微平片上的材料的仪器.Audio - visual materials and microform materials are not inc...