"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.
奥尔文教授说，“我们发现，移植的干细胞发生了永久性改变，减缓了接受移植肌肉的老化，保持了其力量和质量。”
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。
While a majority of the stem may be made from a titanium-based powder material, its tip may be made of a high strength hardened material, such as a steel alloy.
而杆的大部分可由钛基粉末材料制成，其杆头可由高强度硬化材料，例如钢合金制成。
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