The chlorosis develops from light yellow to tan, becoming brown and finally drying to a'scorch ".褪绿部分由淡黄色演变为黄褐色以至褐色,最终变干呈“灼伤状 ”.Is it a lack of sulfur that causes chlorosis?褪绿病是缺硫引起的 吗 ?Hair and fair complexion, no ...
Tungsten is widely used in multi - level interconnection due to its excellent gap filling and anti - electromigration capability.钨由于其优良的抗电迁徙性能和宜加工特性而被广泛应用于多层金属互连技术中.Electromigration dispersion ( EMD ) is one of major eff...
The floatation process for the mixed primary ore is investigated.研究混合原生锰矿的浮选工艺.Super - fluidics floatation is high efficient compared with commons.超效 射流气浮技术同传统的气浮方法相比,更显得高效实用.The increase of carbon equivalent is primary ...