should replace certain materials
Although this kind of experiment possibly can indicate, enters in the product to the production base in front of, should replace certain materials, but, absolutely cannot this point take not earnestly chooses the material the excuse.
基于1个网页-相关网页
should replace certain materials
应该替换某些材料
以上为机器翻译结果，长、整句建议使用 人工翻译 。