前言： 消除压铸件气孔的方法包含4个方面：熔炼、模具、压铸参数和分型剂。
Method used to reduce blow hole defects of die castings include 4 aspects:melting, pattern die. parameters of die casting process, and stripping agent.
在中国以煤为主要燃料，燃煤用户分散，大气环境呈典型的煤烟型污染的条件下，添加固硫剂的洁净煤对大气环境污染的治理具有十分重要的作用。
The captured sulfur agent added into clean coal is very important based on the situation in, China such as coal as the main energy, coal users dispersion and coal smoke pollution type.
酵母细胞壁是一种环保型绿色饲料添加剂，在水产健康养殖中应用十分广泛。
Yeast cell wall, a kind of environmental protection feed additive, is widely applied in health aquaculture.
临床上，病理分型和临床分期相同、用同一剂量及方式进行PDT治疗时，患者却有着不同的敏感性和效果。
Patients may also have different PDT sensitivity and PDT effect even the patients have the same pathological classification, clinical stage and the dose and mode of clinical treatment.
针对传统染发剂的毒性及刺激性，本文研制一种不含有毒铅，不含苯胺类致敏物，而含属于植物构分的有机化合物的天然型染发。
In this paper, a natural hair dye is studied, which mainly contains organic compound of plant without toxic lead and phenylamine sensitizer.
针对传统染发剂的毒性及刺激性，本文研制一种不含有毒铅，不含苯胺类致敏物，而含属于植物构分的有机化合物的天然型染发。
In this paper, a natural hair dye is studied, which mainly contains organic compound of plant without toxic lead and phenylamine sensitizer.
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