求翻译：在本研究中，借助这一生物反应器，对MSCs-DBM复合体施加周期压应力，实验结果表明这种压应力刺激促进了MSCs在支架材料中的增殖和成骨分化，与静态培养相比有更多的细胞数量、更高的ALP活性和钙离子含量。是什么意思？

In this study, with a bioreactor, cycle compressive stress imposed on the MSCs-DBM complex, experimental results show that this compressive stress stimulation of MSCs in proliferation and osteogenic differentiation of the scaffold, compared with static culture have more cells, increased ALP activity and calcium content.