主轴通孔直径 Spindle bore ; Thru-hole of spindle ; Spindle hole ; through hole dlameter
主轴直径 Spindle diameter ; spindle dia ; Main shaft Diameter ; diametro mandrini
主半径 Major Radius
主路径 [计] primary path ; [计] Main Path ; major path
主轴孔径 [机] Spindle bore ; Hole Through Spindle ; Spindle hole ; Dia.of spindle through hole
床尾主轴直径 Tailstock spindle diameter
主用路径 primary path
主轴承轴径 main bearing journal diameter
升主动脉直径 Ao Asc
主动脉弓直径 Ao Arch Diam
共轭椭圆规是根据主径圆的性质设计的。
The conjugate ellipsograph is designed according to the characteristics of the main—diametral circle.
主镜的直径为80厘米,这一口径即使在地面天文台也是很可观的。
The primary mirror is 80 cm in diameter, a respectable size even for an observatory on the ground.
分析表明:通径分析与主成份分析相结合的方法是进行光合速率综合的间接选择的有效方法。
Analysis indicated that it is an effective method to combine path-analysis with principal component analysis for integrated indirect selection of photosynthetic rate.
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