Magnesium hydroxide particles were synthesized via decomposition of hydrosulfide compound followed with hydrothermal treatment.以工业氯化镁和硫氢化钡为原料,采用复分解法合成高纯氢氧化镁.Thioglycolic acid ( TGA ) was synthesized from thioglycolic aci...
He's been a trade union activist for many years.多年来他一直是工会的积极分子.Louise Otto - Peters, German writer , feminist, poet and women's rights activist.路易莎·奥托-彼得,德国女权运动的先驱, 作家, 诗人.Now she is an activist for homeless pe...
Behind the city of Pompeii stood the 4000 - feet Mount Vesuvius.庞培城的后面矗立着4000英尺高的维苏维火山.Republicans acknowledged that they had little choice but to mount an all-out offensive on the Democratic nominee.共和党人承认他们别无选择，只有对获提名的...