The structure of the backbone shows, however, that Ambulocetus swam like modern whales by moving the rear portion of its body up and down, even though a fluke was missing.
不过，走鲸的脊椎结构显示，即使没有尾片，它们在水中同样能够像现代鲸鱼那样通过身体后面部分的上下摆动来游动。
Stovepipe: a structure that supports mostly up-down flow of data but inhibits cross organizational communication.
烟囱(Stovepipe)：结构上支持数据主要在上下方面的流动，却禁止平行的通信。
Figure out how you can make it move a little to the left, a little to the right, up and down and then repeat in some kind of looping structure.
就是找出办法让它向左移动一小步，向右移动一小步，向上一小步，向下一小步，像这样不断重复。
In fact, tall lines running up and down the screen are similar to horizontal lines, in that they communicate stability, order, and give structure to the page.
实际上，屏幕由上往下的长线类似于横线，同样也可传递稳定有序的感觉，并给页面赋予结构。
The /etc/rc.d directory structure can be used to put in S and K files at the various run levels listed to bring up or down processes.
可以使用 /etc/rc.d目录结构在列出的各个运行级别上放入S和K文件，以启用或停止进程。
Base on the calculation of an example, suggestions on range of sideway ratio of stories up and down in transfer story of frame-core tube structure with column supporting transfer beam is obtained.
通过实例计算分析，给出了带托柱式转换梁的框架-核心筒结构的转换层上、下层间侧移角比的取值范围建议。
We have learned this structure from sports medicine: deep breathing, shoulders down, chin up!
我们已经从运动医学中学到这套方式：深呼吸，肩膀放松，收紧下颚。
In the strong-bracing staggered truss structure, the rotating restraints which the columns suffer come from not only the members of the truss, but also the columns up and down.
在强支撑交错桁架结构中，柱子受到的转动约束不仅来源于桁架构件，而且还来源于上、下柱。
The main structure of the mixer adopts two symmetrical single-balanced mixers, with phase-shifting of the up and down path signals to eliminate the image frequency.
混频器主结构采用两只对称的单平衡混频器组合，通过上下两路信号移相来达到消除镜频的目的。
Rotating and up-down swinging of the ram for TJ-18 groundcharger are hydraulically driven, which can reduce the weight of equipment, make structure contact and be convenient to operate.
TJ-18型地面加料机其挑杆回转运动与上下摆动运动采用了液压传动，设备重量轻，结构紧凑、动作灵敏、操作方便。
In this thesis a new double decked, separating up and down vehicles, non-diaphragm and partially cable-stayed bridge structure is presented.
本文所研究的上下行分层矮斜拉连续箱梁桥属于无横隔板的双层新型结构。
One is the saddle-type structure where the projection point is located either in the up part or the down part of the phase plane, which is divided by both stable and unstable manifolds.
一类是投影点处的轨迹走向服从鞍点规律，且由于投影点位于稳定流形与不稳定流形分割的相平面的上部或下部，故轨迹将沿稳定流形方向到达动态鞍点再沿不稳定流形方向离开该点；
The newly determined structure of A3G suggests how it is able to crawl down HIV DNA chains, introducing mistakes wherever the chains are unzipped and skipping over zipped-up, double stranded regions.
最近对A3G结构的确定提示了它是如何能慢慢潜入HIVDNA链，包括了病毒一解链便引入错误信息、跳过合链环节以及扩大故障区域。
Other children would build houses of card up to 4 stories tall before the CARDS would lose balance and the whole structure would come falling down.
其他孩子用纸牌搭楼房，搭到四层高时房子就会摇摇晃晃地坍塌下来。
Other children would build houses of card up to 4 stories tall before the CARDS would lose balance and the whole structure would come falling down.
其他孩子用纸牌搭楼房，搭到四层高时房子就会摇摇晃晃地坍塌下来。
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