Olives look romantic on a hillside in Provence.普罗旺斯一处山坡上的橄榄林呈现出一派浪漫风情。Nicholas has bought a barn in Provence and is spending August doing it up.尼古拉斯在普罗旺斯买了一座条件简陋的大房子，8月份正在装修。They started wittering on about their last tri...
Hydrotalcite - rare earth - Zinc complex heating stabilizer was prepared, its'stability was compared.研究了水滑石 - 稀土 - 锌复合热稳定剂的制备, 并比较了其热稳定效果.This thesis selects hydrotalcite as selective IR absorption material by its c...