The branch method involved building out, step-by-step and by small degrees, from the current situation. 分支方法主要是在当前形势的基础上逐步、小幅度地增加和补充。
Issue to follow ecological environment human society produce and develop and develop and stand up while producing, Improvement as productivities, environmental issues by among a small circle, last global issue that ignore at low degrees. 生态环境问题是伴随着人类社会产生和发展而产生和发展起来的,随着生产力的提高,环境问题正由小范围、低程度演变为不容忽视的全球性问题。
The outline of ski face and side view is described by one rectangle and seven arcs. The ski is discretized as small points but has only six rigid degrees of freedom. 建立了一个6自由度单刚体滑雪板模型。用1个矩形和7个圆弧描述滑雪板的正面和侧面几何轮廓。