The DNA molecule is a double helix, resembling a ladder that's been twisted along its length.

The Double Helix Nebula is a gaseous nebula near the center of our galaxy.

双螺旋星云是一个气态星云,靠近银河系中心.

Genes are segments of the DNA double helix that encode the information for making proteins.

基因是一段DNA双股螺旋,其中携带了制造蛋白质的编码资讯.

Double kill: A play in which two outs are made with one pitch.

双杀: 用一次投球使二人同时出局.

By using the single-double line scanning method, the fruit can be inspected quickly and accurately.

通过采用 单线 扫描法和双线扫描法相结合的方法, 使水果能够快速准确的被检测出来.

He looked at the double line of peasants and he spat on the ground.

他望望两排农民,朝地上啐了一口唾沫.

Magnetic core. Single or double line representation can be specified.

磁芯. 可以指定单线或双线表示.

Duct extension. Supply or return duct can be specified. Single-or double-line ducts can be specified.

管道延伸. 可指定送风管道或回风管道.可以指定单线管道或双线管道.

Magnetic core. Right-click for single or double line representation.

磁芯. 右击指定单线或双线表示.

Drag onto the page, then right-click to specify single-or double-line ducts.

拖到绘图页上, 然后右击可以指定 单线 管道或双线管道.

Drag onto the page, then right-click to specify single or double-line representation.

拖到绘图页上, 然后右击可指定为单线或双线表示.

She graduated from Beijing university with a double-major in Economics and Environmental Science.

她毕业于北京大学,获得经济和环境科学双专业毕业证.

I'm now working on a double major.

我目前在攻读双学位.

In Morris, you could also double major other things.

在莫里斯, 你还可以双选其他专业.

As an undergraduate, I had a double major of Chinese and Mass Communication.

本人在读大学本科时, 曾主修中文和大众传播学.

She is working for her double major in English and Economics.

她正在修英语和经济双学位.

Riera also insists Liverpool cannot afford complacency following their league double over the Blues.

里埃拉还指出,利物浦绝对不能因为这赛季双杀了蓝军而自鸣得意.

This mat is too thick to double over.

这个草席太厚叠不起来.

Let me double over the shawl and put it round you.

让我把这披肩折起来围在你的身上.

To double over ( cloth, for example ).

折叠 ( 如布料 )

Double over the map so that we can read it more easily.

把地图对折起来,这样看起来更容易.