1) Kaiyuan
开原
2) lift the previous flap
掀开原瓣
3) spreading principle
展开原理
1.
<Abstrcat>According to the connect orders of the conterminous points and the visibility judge when the complex surface solid is constructed,the paper gives a method,namely,spreading principle,which solves the complex problem,the orders and the visibility of the conterminous points.
针对复杂平面立体相贯时各贯穿点的连接顺序和可见性的判断难题,提出了一种解题方法———展开原理法,不但可以有效地解决穿点的连接顺序和可见性判断,而且该方法具有简便、快速、易于掌握等特点。
4) principle of openness
公开原则
5) Qingyuan-Kaiyuan
清原-开原
6) Kaiyuan Group
开原岩群
1.
Based on progress made in the study on the chronostratigraphy of the “Qinghezhen Group” or “Kaiyuan Group”, such as SHRIMP ages of 2497±27 Ma and 2522±17 Ma obtained from the Beidagou and Wujiapuzi Formations in the Shangfeidi section, SHRIMP age of 247.
本文根据“清河镇群”(或“开原岩群”)年代地层学研究新进展,即在上肥地剖面原划入北大沟组、吴家堡子组,尖山子水库大坝原划入北大沟组等地层中获得的岩浆结晶锆石(SHRIMP)年龄2497±27Ma、2522±17Ma,250±5Ma;在“白砬子组”(或“照北山岩组”)之建组剖面东杨木林子的大理岩(结晶灰岩)中获得震旦纪之微古植物化石——Stictosphaeridiumtortutosum,Synsphaeridiumsp。
参考词条
补充资料：开原
1.指开国。 2.见"开源"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。