From the supply aspect, this paper has discussed the natural resource element in timber trade bilateral cooperation between China and Russia by E.
该文从供给方面，运用赫克谢尔-俄林模型，探讨了中俄木材双边贸易合作的资源禀赋要素；
Objective To establish the three-dimensional finite element model libraries for mandibular bilateral distal-extension prosthesis.
目的建立下颌双侧末端游离缺失修复方案的有限元模型库。
Objective To establish the three-dimensional finite element model libraries for mandibular bilateral distal-extension prosthesis.
目的建立下颌双侧末端游离缺失修复方案的有限元模型库。
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