最具有经济价值的铁矿包括磁铁矿和赤铁矿.Iron ores of greatest economic interest contain magnetite and hematite.A-Fe2O3(赤铁矿 ) 是中子衍射最先研究的化合物之一.A - Fe 2 O 3 ( haematite ) was one of the first compounds to be studied by neutron diffraction.发现一种...
目的观察苯妥英钠对大鼠实验性胃溃疡的保护作用.Objective To observe the protective effect of PHT on experimental gastric ulcer.目的用高精度散射光度滴定法测定苯妥英钠.Aim To determine phenytoin sodium by a highly accurate nephelometric titration.结论 苯妥英纳对烧伤患者免疫抑制因子...
A first-class worker, she operated the difficult Jacquard looms.她技艺高超，操作着复杂的提花织布机。These include dobbies, cam motions, electronic Jacquard machines and Jacquard harnesses.产品包括凸轮开口装置、电子多臂机 、 电子提花机和提花织造用的通丝.Covered with per...
She is tough, unwilling to take no for an answer.她很强硬，不达目的誓不罢休。Men are anxious to improve their circumstances, but are unwilling to improve themselves; they therefore remain bound.--James Allen人们总是渴望改善周遭环境，但是却不愿意改善自己，因此总...