A new method for calculating drill stemstrength 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。
2
The thickness-diameter ratio of culm, stem diameter, culm wall thickness and pith diameter were significantly correlated with stemstrength.
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。
3
"We found that the transplanted stem cells are permanently altered and reduce the ageing of the transplanted muscle, maintaining strength and mass," said Prof Olwin.