难检字字典在线查询

汉语拼音：jiāo diǎn

1.二次曲线的焦点。参见〔椭圆〕、〔抛物线〕

2.平行于球面镜主轴或透镜主轴射来的各条光线经反射或折射后在主轴上的交点。球面镜有一个焦点；透镜有两个焦点，位于透镜的两侧。

3.比喻问题的关键所在或争论的集中点。

1. 指光线经折射或反射后的交点。一般指主焦点。

2. 某些与椭圆、双曲线或抛物线有特殊关系的点。如椭圆的两个焦点到椭圆上任意一点的距离的和是一个常数。

3. 比喻事情或道理引人注意的集中点。

   胡适 《＜国学季刊＞发刊宣言》：“大家的眼光与心力注射的焦点，究竟只在儒家的几部经书。” 茅盾 《子夜》九：“估量着他每一句话的斤两，同时就感到目前的交涉非常棘手。 赵伯韬 所坚持的一项，正就是 吴荪甫 不肯让步的焦点。”

• Iran was one of many international issues that dominated Mr. Bush's talks with French President Nicholas Sarkozy.

  伊朗和其它一些国际议题成为布什同法国总统萨尔科奇讨论的焦点。

• Such training is, no doubt valuable. But it shouldn't be the only form of management training, or even the focus.

  毫无疑问，这类培训是很有价值的，但不应成为培养领导者的唯一形式，或是唯一关注的焦点。

• Nobody will want to be around you if you 're constantly trying to be the center of attention. Let your friends shine sometimes, too.

  如果你总想成为关注的焦点，那么没人会愿意和你打交道.有时让你的朋友也闪亮一下吧！

• In the Transition phase, the sole focus should be getting the solution ready to deploy and then actually deploying it.

  在产品化阶段，唯一的焦点应该是准备好解决方案，然后对它进行部署。

• She said: "The Federation of the Phonographic Industry focus increasingly difficult to control, regardless of the media, consumers. "

  对此她说：“唱片业的焦点越来越难掌控，不论是媒体、消费者。”

• The next step is to work out their power, influence and interest, so you know who you should focus on.

  第二步是搞清楚他们的权力、影响力以及兴趣，这样您就知道应该把焦点集中在谁身上了。

• Vocabulary, as a fundamental aspect of second language acquisition (SLA), has always been a concern of L2 learners and researchers.

  词汇，作为学习外语的一个基本因素，一直是广大外语学习者和外语工作者关注和研究的焦点。

• This came out of the British coroner's inquest where driver Henri Paul's drinking is a key issue.

  来自英国验尸官的调查结果表明HenriPaul是否喝酒是一个焦点问题。

• Meanwhile, it has been a highlight problem that whether the radiation from the mobile handset may make some side-effect on the human body.

  与此同时，手机电磁辐射是否对人体构成危害，也自然成为人们关注的焦点。