up and down structure的意思|示意

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。

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。

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；

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。

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。

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。