沥青漆;
The design to be printed is painted directly onto a zinc plate with asphalt varnish which acts as an acid resist.
先用沥青制假漆作为抗触膜,在锌版上直接绘画图案。
Mingling C 60/ C 70 and asphalt with alkyd varnish at the same time, the absorbance of the polymerization film decreased nonlinearly with the increase in wavelength in the range of 350-760 nm, and also the strength of the film was improved.
将C60/C70和沥青同时掺入醇酸清漆中,聚合后薄膜的吸光度在350~760nm波段随波长的增加而呈非线性下降,同时薄膜的强度也有所提高。
纳米英语 · 中考英语
纳米英语 · 双语娱乐资讯