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at-
[æt; ət]

  • pref. 被动现在分词(进行体)

网络释义专业释义英英释义

  抗凝血活酶

... 纤维蛋白原(Fg) 抗凝血活酶-Ⅲ测定(AT-Ⅲ) 蛋白C抗原测定(Pc:Ag) ...

基于12个网页-相关网页

  抗凝血酶

抗凝血酶(antithrombin- ,AT- )和肝素对生物材料进行表面改性,以提高其抗凝血性能.

基于2个网页-相关网页

  用抗凝血酶

用抗凝血酶(antithrombin- ,AT- )和肝素对生物材料进行表面改性,以提高其抗凝血性能.

基于2个网页-相关网页

  凝血酶

用抗凝血酶(antithrombin- ,AT- )和肝素对生物材料进行表面改性,以提高其抗凝血性能.

基于2个网页-相关网页

短语

at last 终于 ; 最后 ; 最终 ; 最一

at once 马上 ; 立刻 ; 同时 ; 立即

aim at 瞄准 ; 针对 ; 目的在于 ; 企图

at length 终于 ; 详细地 ; 最终 ; 最后

at heart 在内心 ; 实质上 ; 内心里 ; 在内心里

At present 目前 ; 现在

at times 有时 ; 间或 ; 不时 ; 偶尔

at most 最多 ; 至多 ; 不超过 ; 至多不超过

at least 至少 ; 至少来源 ; 最低限度 ; 起码

 更多收起网络短语
  • 单价
  • 异步传输 (asynchronous transmission)
    异步传输法
    非同步传输 (asynchronous transmission)
    安匝
    业馀电台
  • 验收测试 (acceptance test)
    存取时间 (access time)
    会计制表 (accounting tabulating)
    交叉磁带 (across tape)
    作用时间 (action time)
    加法器树 (adder tree)
    位址转译器 (address translator)
    位址翻译器
    先进技术 (advanced technology)
    权限表 (authority table)
    安培匝 (ampere turn)
    异常传输 (anomalous transmission)
    自动电话 (automatic telephone)
    自动订票 (automatic ticketing)
    自动打字机 (automatic typewriter)
    辅助计时器 (auxiliary timer)
  • 共济失调毛细血管扩张症 (ataxia telangiectasia)

·2,447,543篇论文数据,部分数据来源于NoteExpress

at- [ ət ]

  • n.
    • a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

      同义词: astatine At atomic number 85

    • 100 at equal 1 kip in Laos

      同义词: at

以上来源于: WordNet

 柯林斯英汉双解大词典 

at /ət, æt/ CET4 TEM4

  • 1. 

    PREP You use at to indicate the place or event where something happens or is situated. 在 (某地)

    例:

    He will be at the airport to meet her.

    他将在机场见她。

    例:

    I didn't like being alone at home.

    我不喜欢独自在家。

    例:

    They agreed to meet at a restaurant in Soho.

    他们约定了在索霍区的一家餐馆里见面。

  • 2. 

    PREP If you are at something such as a table, a door, or someone's side, you are next to it or them. 在…旁边

    例:

    An assistant sat typing away at a table beside him.

    一名助手坐在他身边的一张桌子旁打字。

    例:

    At his side was a beautiful young woman.

    他的身边是一位漂亮的年轻女子。

  • 3. 

    PREP When you are describing where someone or something is, you can say that they are at a certain distance. You can also say that one thing is at an angle in relation to another thing. 以 (某距离、某角度)

    例:

    The two journalists followed at a discreet distance.

    那两名记者保持一段适当的距离跟在后面。

  • 4. 

    PREP If something happens at a particular time, that is the time when it happens or begins to happen. 在 (某时刻)

    例:

    The funeral will be carried out this afternoon at 3:00.

    葬礼将在今天下午3点举行。

  • 5. 

    PREP If you do something at a particular age, you do it when you are that age. 在 (某岁时)

    例:

    Zachary started playing violin at age 4.

    扎卡里4岁开始拉小提琴。

  • 6. 

    PREP If someone is at a particular school or college, they go there regularly to study. 在 (某学校)

    例:

    Their daughter is a sophomore at Yale.

    他们的女儿在耶鲁大学读大二。

  • 7. 

    PREP You use at to express a rate, frequency, level, or price. 以 (某速度、频率、水平或价格)

    例:

    I drove back down the motorway at normal speed.

    我以正常速度沿高速公路往回开。

    例:

    Check the oil at regular intervals, and have the car serviced regularly.

    定期检查机油,经常保养汽车。

  • 8. 

    PREP You use at before a number or amount to indicate a measurement. 在 (某数量) [PREP amount]

    例:

    ...as unemployment stays pegged at three million.

    …由于失业人数维持在300万。

  • 9. 

    PREP If you look at someone or something, you look toward them. If you direct an object or a comment at someone, you direct it toward them. 朝 (方向)

    例:

    He looked at Michael and laughed.

    他朝迈克尔看去,笑了。

  • 10. 

    PREP You can use at after verbs such as "smile" or "wave" and before nouns referring to people to indicate that you have put on an expression or made a gesture that someone is meant to see or understand. 冲 (某人…) [v PREP n]

    例:

    She opened the door and stood there, frowning at me.

    她打开门站在那里,冲我皱着眉头。

  • 11. 

    PREP If you point or gesture at something, you move your arm or head in its direction so that it will be noticed by someone you are with. 对着(某物) [v PREP n]

    例:

    He pointed at the empty bottle and the waitress quickly replaced it.

    他向那个空瓶指了指,女服务员迅速换了它。

  • 12. 

    PREP If you are working at something, you are dealing with it. If you are aiming at something, you are trying to achieve it. 在 (某目标上)

    例:

    She has worked hard at her marriage.

    她在婚姻上已经很努力了。

  • 13. 

    PREP If something is done at someone's invitation or request, it is done as a result of it. 应 (某人之邀) [PREP n with poss]

    例:

    She left the light on in the bathroom at his request.

    她应他的要求让浴室里的灯开着。

  • 14. 

    PREP You use at to say that someone or something is in a particular state or condition. 在 (某状态或情况下) [v-link PREP n]

    例:

    I am afraid we are not at liberty to disclose that information.

    恐怕我们无权透露那信息。

  • 15. 

    PREP You use at before a possessive pronoun and a superlative adjective to say that someone or something has more of a particular quality than at any other time. 在 (某人或某事物最…的时候)

    例:

    When I'm on the soccer field, I'm at my happiest.

    当我在足球场上时,我最开心了。

  • 16. 

    PREP You use at to say how something is being done. 以 (某方式)

    例:

    Three people were killed by shots fired at random from a minibus.

    三个人被一辆小巴里乱射的子弹打死了。

  • 17. 

    PREP You use at to show that someone is doing something repeatedly. 在 (某物上反复做某事) [v PREP n]

    例:

    She lowered the handkerchief which she had kept dabbing at her eyes.

    她放下了那块她一直在反复擦眼睛的手绢。

  • 18. 

    PREP You use at to indicate an activity or task when saying how well someone does it. 在 (某方面)

    例:

    I'm good at my work.

    我擅长我的工作。

  • 19. 

    PREP You use at to indicate what someone is reacting to. 因 (某事物)

    例:

    Elena was annoyed at having had to wait so long for him.

    埃琳娜因不得不等他那么长的时间而恼火。

  • 20. 

    N a Laotian monetary unit worth one hundredth of a kip 老特; 老挝货币单位,100老特等于1基普

  • 21. 

    the INTERNET DOMAIN NAME for Austria 奥地利

  • 22. 

    at all →see all

词组短语

at all (否定句)根本;究竟

be in at 在场,参与 , 参与;与…有关 , [口语] (在某事的最后阶段)在场;参与:  

at it again [口语]争吵;重复负面消极的行为(此语亦可含有与性行为有关的意思)  

双语例句原声例句权威例句

更多双语例句
  • But the oil is processed and exported -- at least for now -- from Port Sudan in the north.

    VOA: special.2011.01.08

  • These implicitly make a claim to the generality--at the national scale, or in the racial sense-- the representativeness of this life.

    而不是一个特定的人,这暗含了一种普遍性,在民族范围内或者在种族意义上来看-,来表现这种生活。

    耶鲁公开课 - 1945年后的美国小说课程节选

  • I think she is a character that you can--if not identify with--at least, you can understand and be interested in.

    也至少能够理解和感兴趣的角色,所以,在这本书,还有我们下次。

    耶鲁公开课 - 1945年后的美国小说课程节选

更多原声例句
更多权威例句

词组短语

at all (否定句)根本;究竟

be in at 在场,参与 , 参与;与…有关 , [口语] (在某事的最后阶段)在场;参与:  

at it again [口语]争吵;重复负面消极的行为(此语亦可含有与性行为有关的意思)  

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- 来自原声例句
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