英语释义

• an indication of the approach of something or someone

• a substance from which another substance is formed (especially by a metabolic reaction)

• a person who goes before or announces the coming of another

片语

precursor protein前区蛋白

gel precursor凝胶前驱物

precursor nuclide[核]

active precursor活性前体

precursor frequency前体频率

Precursor Scan母离子扫描模式

Osteoclast Precursor破骨细胞前体

vitamin precursor维生素原

tRNA precursor转移RNA前体

precursor chemicals易制毒化学品

英汉例句

• is watson, despite its limitations, nonetheless a precursor to a hal-esque machine that can 「mimic」 natural language, if not 「reproduce」 it?

  忽略其限制因素，如果不能实现复制再现，那么单单在模仿人类语言上，沃森会是哈尔的前身吗？

• and so, you make not only water vapor, nox but you make some nitrous oxides, nox, or nox as it is known, and this is the precursor to smog.

  这样不仅仅得到的水蒸气，但是你会得到一些氮氧化物，或者如大家所知到的nox，这是烟雾的前驱体。

• the results agree with previous studies that have analyzed single photons whose precursor and main wave form have not been separated, which have reported an oscillatory structure.

  结论与先前的研究相同，虽然先前的研究分析的是尚未将前驱和主波分离的光子，它们显示出了一个振蕩结构。

• the meeting was a precursor to the larger g-20 meeting taking place in seoul on november 11 and 12.

  这次会议将是于今年的月的11日至12日在汉城召开的较大的20国集团会议的前兆。

• its precursor organisation grew into a nationwide network. in the 2004 elections it put this to good use, winning more than 7% of the vote.

  该党的前身组织由此逐渐发展出一个全国性的网络，并在2004年的大选中很好地加以利用，赢得了超过7%的选票。

• impatience is often a precursor to self-punishment, so stop way before the red light hits.

  焦躁通常是自我惩罚的前兆，因此，你得赶快在红灯亮起之前停下来。

• the company has provided similar support to the asc and its precursor organization, the army field support command, for the past six and one-half years, the officials said.

  该官员说，该公司在过去的六年半时间内还为asc和其前身组织陆军野战支援司令部提供类似的支持。

• they alter the way it cleaves amyloid precursor protein.

  它们改变了这个酶切割淀粉样蛋白前体的方式。

• in 1621, the pilgrims sat down with a group of native americans for a harvest feast — the precursor to the thanksgiving holiday we celebrate today.

  1621年，清教徒与一群美洲印第安人坐在一起，举行一个丰收宴会——我们今日所庆祝的感恩节的前身。

• the current huge gaps, in income levels, opportunities, and health outcomes, are a precursor for social breakdown.

  目前的收入水平、机会和健康结果的巨大差距是社会崩溃瓦解的一个前兆。

• at the moment, as du explained, optical precursor communication is limited by current technology, so it is not yet practical.

  同时，正如杜博士解释的那样，现有的技术限制光前驱通讯的发展，所以它还没有应用于实践。

• as the optical precursor and main wave packet traveled through a second group of rubidium atoms, the scientists took measurements on the speed of the two photon components.

  随着光前驱和主波包通过第二组铷原子，科学家就可以对这两个光子成分的速度进行测量。

• he persisted in his strategy of disabling russia’s ally as a necessary precursor to the final showdown with peter, which he was still confident of winning.

  他仍然坚持自己以打败俄国的盟友作为最终打倒彼得的必要先导的策略，此时他仍然对最终的胜利抱有信心。

• in low-lying areas, people will watch the steady retreat of arctic ice, a precursor to rising sea levels, with increasing apprehension.

  北极冰层的持续融化是海平面上升的前兆，低洼地区的人们对此将越来越担忧，并密切关注着。

• previous experiments based on macroscopic electromagnetic wave propagation (involving lots of photons) have shown that the optical precursor is the fastest part in the propagation of an optical pulse.

  先前基于宏观电磁波（包含大量光子）的实验已经证明，光前驱是光脉沖在传播过程中最快的部分。

• the interference of the precursor and the slightly delayed main waveform can explain this structure.

  前驱的干扰和主波形轻微的延迟可以解释这个结构。

• in fact, the new yeast strain simultaneously converts cellobiose (a precursor of glucose) and xylose to ethanol just as quickly as it can ferment either sugar alone.

  这种新酵母可以同时将葡萄糖的前身纤维二糖和木糖转化为乙醇，其速度与单独发酵任一糖类一样快。

• tryptophan is an essential amino acid that acts as a precursor of serotonin – the feel-good chemical – and can be converted to melatonin, eliciting relaxation and pleasure.

  色氨酸 ，一种非常重要的氨基酸，也是血清素（让人感觉良好的化学物质）的前导，会转换成褪黑色素，刺激加强松弛感和愉悦。

• the idea that any country may take action against pirates is the precursor to the idea of 「universal jurisdiction」 used to prosecute heinous crimes such as genocide.

  任何国家都有权采取行动对抗海盗的理念也是「普遍管辖权」的前身（这种权利被用来起诉一些极恶的罪行，如种族灭绝）；

• the models may be developed as a precursor to implementing the physical system, or they may be derived from an existing system or a system in development as an aid to understanding its behavior.

  模型也可以作为实现物理系统的先驱被开发，或者模型可以根据一个已存在的系统或者开发中的系统被产生作为理解系统行为的帮助手段。

• corporations have had the precursor of social networks for ages.

  很长时间以来，企业都是社会化网络应用的先驱。

• as such, this question is as old as sgml, the precursor of xml, and has been hotly debated with no universally accepted consensus.

  这个问题像xml的先驱sgml一样古老，而且曾经历过热烈的辩论，只是最后也没有广泛地达成一致。

• to date, no so-called quake precursor has achieved anything like that degree of reliability.

  到目前为止，任何所谓的地震前兆都远未达到这个準确率。

• the giant german automaker marked the anniversary of the riding car by calling it 「the most important precursor to individual mobility.

  这个德国汽车巨头在纪念骑式双轮车的周年庆上把它称作“个体流动最重要的先驱」。

相似词

parent(Parent)人名；(法)帕朗；(英、西)帕伦特

original原件，原版；（文学中）原型；（歌，画等的）原创作品；原版唱片；真品原版服装；古怪的人

ancestor始祖，祖先；被继承人

antecedent先前的；（语法）先行的

leader(Leader)人名；(英)利德