petroleum products. determination of bromine number of distillates and aliphatic olefins. electrometric method.

  • 石油产品。蒸馏和脂肪烯烃的溴数测定。测电法。
  • 来源:互联网摘选更新时间:2026-07-14 17:51:05

  • 重点词汇
  • 相关例句
1、

let the soup cook on low heat for an additional 1 hour and 15 minutes.

让汤用小火再煮1小时15分钟。

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2、

let's have a sit-down before you share what's happening.

咱们先坐下来谈谈,你再告诉我发生了什么。

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3、

i'll announce your arrival over the public address system to let them know.

我会通过公共广播系统宣布你的到来,让他们知道。

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4、

let's head to that charming little coffee shop around the corner for a brew?" — "absolutely, i've been eager to visit that place.

“我们去拐角处那家迷人的小咖啡店喝一杯吧?”——“当然,我一直很想去那儿看看。”

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5、

her long hair was let loose, flowing effortlessly with the wind.

她的长发被松开,随风轻盈地飘舞。

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6、

don't let too much fat drip onto the barbecue, or it might flare up.

不要让太多油脂滴到烤架上,否则可能会突然燃烧起来。

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7、

few of us can claim complete proficiency in english, let alone sonia with her restricted grasp of the language.

我们中很少有人敢说自己完全精通英语,更不用说英语能力有限的索尼娅了。

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8、

she hastily scribbled a note to let her mum know she'd departed.

她匆忙写了个便条让妈妈知道她已经离开了。

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9、

though sybbis complained bitterly without let-up, mama refused to give her a break.

尽管西比斯不停地痛苦抱怨,但妈妈拒绝给她任何喘息的机会。

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10、

sue let out a sudden scream, not from terror, but in sheer surprise.

休突然发出一声尖叫,不是出于恐惧,而是纯粹的惊讶。

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11、

let's discuss something else instead?

我们不如讨论点别的吧?

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12、

if they value these data, let them pay for each datum.

他们要是看重这些数据,就让他们为每一条数据出钱。

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13、

there a reason for the popularity of harry potter and thethe rings and marvel comics.

《哈利·波特》和《指环王》及《星球大战》等之所以流行是有其原因的.

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14、

snake charming is the practice of pretending to hypnotize a snake by playing an instrument.

耍蛇是通过演奏乐器假装给蛇催眠的活动。

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15、

the art of snake charming is widely believed to have started in ancient egypt.

人们普遍认为耍蛇术起源于古埃及。

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16、

sex is everywhere in 18 th-century art, from fragonard's hedonism to hogarth's cynicism.

从弗拉戈纳尔的享乐主义到荷加斯的愤世嫉俗,18世纪的艺术中, 性随处可见.

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17、

he's been super supportive.

他一直非常支持人。

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18、

she was super (= very helpful) when i was struggling with my homework.

我写作业遇到困难时,她帮了大忙。

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19、

we had a super day at the beach.

我们在海滩度过了超级愉快的一天。

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20、

a super party

一场精彩的派对

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