并针对叶片主干部分的椭圆柱面，分别推导其测地线和非测地线的微分方程序。
For the elliptic cylindrical surface which is the trunk of the blade, the geodesic and non-geodesic differential equations are deduced.
其树性稍，叶呈椭圆形，叶厚肉多，叶片平坦展开，适宜制种铁观音茶。
The tree of slightly, oval leaves, leaf thickness more than meat, leaf flat start, suitable seed Tie Guan Yin tea.
叶片基部宽楔形到圆形，边缘钝锯齿；核果和内果皮椭圆形的到长圆形。
Leaf blade base broadly cuneate to rounded, margin obtusely serrate; drupe and endocarp ellipsoid to oblong.
汽轮机末级长叶片常用的拉金形式有圆柱形拉金和椭圆形拉金。
The form of lacing wires used in the last stage of steam turbines is commonly cylindrical lacing wire or elliptic lacing wire.
与玉米间作的大豆，宜选育叶片大小中等、披针形或短椭圆形、叶柄短而粗、叶色深绿的品种。
The soybean variety under-sowing with maize ought to select that the leaf is middle size, lanceolate or elliptic, deep green colour, and the petiole is short and thick;
与玉米间作的大豆，宜选育叶片大小中等、披针形或短椭圆形、叶柄短而粗、叶色深绿的品种。
The soybean variety under-sowing with maize ought to select that the leaf is middle size, lanceolate or elliptic, deep green colour, and the petiole is short and thick;
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