1.
Study on Accurate Relieving Grinding Method of Milling Cutter with Fir-slot
枞树型轮槽铣刀精密铲磨方法的研究
2.
ON THE THREE DIMENSIONAL CONTACT STRENGTH OF FINAL ARC FIR TREE BLADE ROOT AND ROTOR
末级圆弧枞树型叶根与轮缘三维接触强度研究
3.
Research & Practice of the Turbine Dish Tenon Tooth Broach;
涡轮盘枞树形榫齿拉刀的研制与应用
4.
of northern Europe and America; resembling a miniature fir.
分布于欧洲北部和美洲地区；类似于小型枞树。
5.
Research process and application of abietic-type resin acids derivatives
枞酸型松香树脂酸衍生物及其应用研究进展
6.
Study on thermal reactions of abietic-type acids in rosin
松香中枞酸型树脂酸热作用变化规律的研究
7.
Separation of Abietic-type Resin Acids and Synthesis, Biological Activities of Their Derivatives;
枞酸型树脂酸分离及其衍生物合成与生物活性研究
8.
NC Milling and 3D Modeling of a Geneva Mechanism with Symmetrical Curved Slots
对称曲线槽槽轮机构的数控加工与三维造型
9.
Poplar, elm, walnut, camphor, fir, rosewood, bamboo, etc.
白杨，榆木，胡桃，樟树，枞树，紫檀，竹子等。
10.
The fir remains green all year and its needles are distributed evenly around the branch.
枞树终年常绿，它的针状叶均匀地长在树枝上。
11.
Geometrical Analysis For the Surface Contour of the Die Cavity and Forging in Roll Forging Dies
辊锻模型槽与锻件轮廓曲面的几何分析
12.
Mathematical Model and the CAD System of the Grinding Wheel for Drill's Flute;
加工钻头螺旋槽用砂轮的数学模型及其CAD系统
13.
Solid Modeling and Numerical Control Machining of Sine Groove Cone Cam Based on MasterCAM
基于MasterCAM的圆锥正弦槽凸轮实体造型与数控加工
14.
Process and Measure of Turbine Blade-Root Annular Groove and the Improvement of Cutting Tool
汽轮机环型齿槽叶根加工、测量及其刀具的改进
15.
Study on the new geneva mechanism oriented to virtual prototype technology
基于虚拟样机技术的新型槽轮机构的性能研究
16.
Research of the Three-dimension Contact Problem of the Steam Turbine Blade s Root and Groove by the Distorted Model;
用变态模型研究汽轮机叶根轮槽的三维接触问题
17.
Any of several similar or related trees, such as the Douglas fir.
枞木类似或相关树木中的任意一种，例如黄杉
18.
On Sarah Orne Jewett s Attitude toward Nature from《The Country of Pointed Firs》;
从《尖尖的枞树之乡》看萨拉·朱厄特的自然观