Soil quality . determination of dry bulk density 土壤质量.干松密度的测定
2.
" you ' re like the bun in my life sweet inside hiding beneath the bread skin "你就象是我生命里的面包甜心深深的藏在干松的表皮下面
3.
Kiln dried pine 窑干松木
4.
Test methods for aggregates - determination of dry bulk density by the cylinder method and calcualtion of the ratio of density 集料试验方法.用柱状法和密度比率的计算测定干松密度
5.
So in our experiment , we applied with freezing and drying bone and bone marrow stem cells ( bmsc ) as cellular seeds . in these conditions , freezing and drying bones provided fine interspaces structure and good adhesive and grow conditions . at the same time , bmsc which transfected vascular endothelial growth factors ( vegf ) as cellular seeds provided the seeds and stimulating factors 目前，深冻骨已商品化，免疫排斥反应罕见发生，故本实验以冻干松质骨作为基质材料、转染有血管内皮细胞生长因子( vegf )的骨髓基质干细胞( bmsc )为种子细胞，这样既保持了骨组织优良的空间结构，又提供了种子细胞和血管化的刺激因子。
