1) color-causing factor
致色因素
3) colouring element
致色元素
1.
The mineralogical characters and colouring elements of lavender jadeite jade are summarized according to the studies under polarized microscope, infrared spectrum analysis, X-ray diffraction analysis and energy dispersive X-ray spectrum analysis of 9 samples which includes two samples of jadeite jade B.
结果表明：紫色翡翠的比重相对轻小；其主要矿物成分为硬玉，次要矿物为钟长石和透闪石，少量的霓辉石和霓石；硬玉可分为三个世代，紫色硬玉的晶形较好，多呈自形粒状交品结构，主要属于第二和第三世代，即形成时间相对较晚；紫色翡翠的颜色主要由致色元素Fe引起，同时，V，Ni，Mn等致色元素对形成紫色的不同色调也起一定的作用。
4) Etiological factor
致病因素
1.
Objective To know the etiological factors of prevention and cure of drug-induced hepatitis.
目的了解药物性肝炎的致病因素及防治。
5) pathogenic factor
致病因素
1.
Objective To study the pathogenic factors and epidemiologic features of chronic gastritis and peptic ulcer in children.
目的 探讨儿童慢性胃炎、消化性溃疡的致病因素及流行病学特点。
2.
ObjectiveIn order to confirm the relationship of pathogenic factors and clinical manifestation of cerebral palsy.
目的探讨脑瘫致病因素与临床表现之间的关系。
6) the factors which might restrict its consistent development
致障因素
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条