Zinco a line or coarse screen half-tone block etched on zinc for letterpress printing. see zinc engraving.
线条锌版活版印刷用的线条或粗网半色调凸版。参阅锌电版。
Study results show, that it would be better not to recommend a narrow range of if screening is done with a coarse screen.
该文以几种固体燃料为例研究了煤颗粒的形状因子及其对流态化、床内传热的影响。 研究表明，对宽筛分煤不宜推荐狭窄的值范围。
Choose different rotor and relevant screen basket according to stock type and process position. It can be used for fine screening or coarse screening.
根据不同浆料和不同的工艺位置选择不同的转子及相应的筛鼓，可分别用于粗选或精选。
应用推荐