双锥体

As the two tracks are not parallel, and have a certain angle, the rolling object is in the shape of a double cone. People see the cone moving upwards; this is because as the gaps between fulcrums gradually widen, the center of gravity declines.

由于两轨道不平行，有一定夹角，滚动体成双锥形状，所以表面上看锥体由低处向高处运动，实际上由于支点逐渐向两边拉开，重心在不断的下降。

Findings in patients with lower positioned spinal cord were as follows: diastematomyelia (n=5), double stem spinal cord (n=6), intradural lipoma (n=10), intradural ep...

低位脊髓合并脊髓纵裂 5例，双干脊髓 6例，椎管内脂肪瘤 10例，椎管内皮样囊肿 3例，脊髓空洞症 5例，脂肪脊髓膨出 7例，半锥体 3例，椎板缺如 3例，棘突分叉畸形 8例。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。