的;Compared with diolefine rubber,EPDM has less double bond.
与二烯烃橡胶相比,EPDM的双键很少。
楼；双层甲板
]双重征税；[]重复课税Compared with diolefine rubber,EPDM has less double bond.
与二烯烃橡胶相比,EPDM的双键很少。
Rose doubled over when Facer walked in wearing his funny clothes.
当费塞穿着滑稽的服装走进来时, 萝丝笑得直不起腰来。
Petrochemical wastewater were treated by continuous micro filtration(CMF) and reverse osmose(RO) double membrane technique.
采用连续微滤(CMF)-反渗透(RO)双膜技术深度处理石油化工排放水。
She doubled as the maid and the secretary in the play.
她在这出剧里兼饰女佣和秘书。
He suddenly doubled and ran in the opposite direction.
他突然转身, 朝相反方向跑去。
The baby doubled its weight in a year.
那婴儿
体重增加了倍。
She doubled the sheet of the paper and put it away.
她把这张纸折起来放到边。
The fox doubled (back) on its tracks.
狐狸突然转身急逃。
He doubled as coach and captain of the team.
他担任教练兼队长。
The dog doubled on its tracks .
狗急忙折回逃跑。
He is doubling the parts of a preacher and a teacher.
他扮演牧师和教师两个角色。
He is doubling the part of a teacher and a missioner.
他在出戏里扮演教师和传教士两个角色。
She paired off with Alice in a tennis doubles match.
她在网球双打比赛与阿莉斯结成对。
They all doubled up when I told my joke.
当我讲笑话时, 他们都笑得直不起身子来。
The house has doubled in value since I bought it.
自从我买下这幢房子以来, 它的价值已增加了倍。
These impoverished students endure double pressures of economy and study as the puniness colony.
作为高校的弱势群体，贫困大学生承受着济和学习的双重压力。
This pneumatic tool will double the speed of assembly.
这个气动工具可以把装配速度提高倍。
Because of the housing shortage, many couples had to double up in one tiny apartment.
由于住房紧张, 许多对夫妻只好挤在栋公寓里。
5 Who can strip off his outer garment, or penetrate his double corselet?
谁能揭开它的外衣，谁能穿透它双层的鳞甲？
A double salt of platinous cyanide and another cyanide.
由于氰化铁氧化而形成的氰铁酸的盐。
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