ball method of testing 钢球压印试验法
Ring-and-ball method 环和球法 ; 环球法
Four-ball Method 四球法
ring and ball method 环球法 ; 环与球法
steel ball method of launching 钢珠下水法
ice ball method 冻土移植法
four ball method 四球法
For fast calculating the signed distance from spatial point to STL model, a reference ball method was put foward based on linear octree.
针对如何快速求取空间点到STL模型表面有符号距离这一问题，提出一种基于线性八叉树的参考球方法。
Nematicidal activity of aloperine, cytisine, N methylcytisine and matrine was bioassayed by the agar medium method and the cotton ball method.
使用培养基法和棉球法测定了苦豆碱、野靛碱、甲基野靛碱、苦参碱对松材线虫的杀线活性。
The softening point of these materials was determined by ring and ball method. The gardner method was used to evaluate the colorimetry and grade. The materials were characterized in detail by IR.
通过环球法和加特纳法分别测定这类物质的软化点及评定其色价、等级，并测定了这类物质的红外光谱、 紫外光谱、 荧光光谱和差热-热重变化。
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