central cylinder

基本解釋

The central cylinder in which the primary vascular tissue is arranged around a pith, as in most seed plants.
一種管狀中柱，其中初生脈管組織排列在髓孔周圍，存在于大多數(shù)種子植物中。
In this paper the problems of data processing are solved by uniting the data of design technology and measurement into a central cylinder .
提出將設(shè)計(jì)、藝、測基準(zhǔn)統(tǒng)一于中心圓筒的方法，解決了數(shù)據(jù)處理難點(diǎn)問題。
The smaller, central cylinder is called the Collision Airspace Zone (CAZ). It envelops the aircraft tightly and always remains the same size.
中間較小的圓柱形叫做“碰撞空域”（CAZ），它緊緊圍繞飛機(jī)并一直保持大小不變；