A new method for calculating drill stem strength can be applied to designing and checking strength of drill stem.
提出了一种钻柱强度计算新方法，可用于钻柱的强度设计和强度校核。
The thickness-diameter ratio of culm, stem diameter, culm wall thickness and pith diameter were significantly correlated with stem strength.
结果表明小麦茎秆强度与厚径比、壁厚均呈极显著正相关，与髓腔直径呈极显著负相关。
The thickness-diameter ratio of culm, stem diameter, culm wall thickness and pith diameter were significantly correlated with stem strength.
结果表明小麦茎秆强度与厚径比、壁厚均呈极显著正相关，与髓腔直径呈极显著负相关。
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