The Epidermal cell and fibroblasts culture in vitro were conducted by enzyme digestion. Epidermal cell primary culture was described by growth graph and MTT method was used in subculture cell growth.

酶消化法进行表皮细胞和成纤维细胞培养，绘制表皮细胞原代生长曲线，MTT法测定传代后表皮细胞的增殖。

youdao

Selenium is critical for the production of glutathione peroxidase, the body's primary antioxidant that is found in every cell.

硒是生产谷光甘肽过氧化酶的关键，在每个细胞中找到的人体主要的抗氧化剂。

youdao

The effect occurs because of a molecule called staphylococcal lipoteichoic acid that acts on keratinocytes, the primary cell type found in the epidermis – or outer skin layer.

由于葡萄球菌脂磷壁酸分子（在表皮中或外皮层找到的主要细胞类型）作用在角化细胞上产生了这个结果。

youdao

In some instances, coverage may include discounts for cell phone service instead of land lines at primary residences because realistically, cell phone service is less expensive in some areas than traditional service.

FORBES: Crazy For "Obama Phones" - But Are They For Real?

As handsets become more capable from battery and speed perspective, the migration of customers using the cell phone as a primary source of engagement is increasing quarter over quarter exponentially.

FORBES: Verizon Very Excited That It Can Track Everything Phone Users Do And Sell That To Whoever Is Interested

This might be tied to the fact that African-Americans and Hispanics are more likely than whites to rely on their cell phones as their primary or exclusive phones for calling and for Internet access.

CNN: Smartphone users report more phone problems, survey says