stably

In the prothallial and sporogonium period,their feature isozymes bands appeared stably.

同发育期，均有特征带。

In order to study the role of bone sialoprotein(BSP) in the metastasis of breast cancer cells to bones,a breast cancer cell line stably expressing BSP should be established.

为进一步研究骨唾液蛋白(BSP)乳腺癌细胞骨转移的整个过程中的作用,首先要建稳定高效表达BSP的乳腺癌细胞系。