Several kinds of novel extraction solvents were presented which mainly included N - formylmorpholine, dimethyl formamide, etc.介绍了石油化工领域采用的几种优良抽提剂,包括N - 甲酰吗啉 、 二甲基甲酰胺等....
Grace laid out the knives and forks at the lunch-table.格雷丝把刀叉摆放在午餐桌上。The only sound is that of knives and forks scraping against china.只听见刀叉摩擦瓷器的刺耳声。I have a set of stainless knives and forks.我有一套不锈钢刀叉....
Felicity seemed pleased at the suggestion...费莉西蒂好像对这个建议很满意。...his conversational manner and easy verbal felicity.他善于言辞，谈吐得体The change in Felicity was miraculous.费莉西蒂的变化不可思议。Felicity's bedroom was spartan but functio...
She was demurely dressed in a black woollen suit.她穿了一身黑色羊毛套装，显得很庄重。I slipped off my woollen gloves.我迅速地脱下了毛绒手套。She threw a heavy woollen cloak over her shoulders.她把一件厚重的羊毛斗篷披在肩上....
珊瑚是由某些水螅体构成的.Coral is formed by certain types of polyp.水螅虫类生命循环中的无性生殖水螅虫.The asexual polyp in the life cycle of a hydrozoan.在南极边的威德尔海,一只水螅水母伸展它的冷光触须.A hydromedusa spreads its luminescent tentacles in the Weddell Sea near...