The safety note boards, slogans, and varied operation regulation boards will de installed on the constructing field, forming a good atmosphere of product safety.
现场树立醒目的安全警示牌、标语及各种操作规程作业牌，造成安全生产良好的氛围。
2
Histone acetylation and de-acetylation can change the structure of chromatin, involving in gene expression regulation and nuclear reprogramming.