Instantaneous是一个形容词，意思是瞬间的，即发生在一瞬间的，下面从词汇解释、用法、同义词三个方面进行说明：

1.词汇解释：

instantaneous是由instant（瞬间）和-aneous（形容词后缀）组成的。它的汉语意思是瞬间的，表示事情在瞬间发生或完成。

2.用法：

（1）描述事件在短时间内发生或完成：

An instantaneous burst of energy propelled the car forward.（瞬间释放的能量推动了汽车前进。）

（2）描述状态或情感表现出来的瞬时性：

An instantaneous feeling of warmth flooded my body. （一瞬间，温暖的感觉涌遍全身。）

（3）在科学、数学和物理领域中，表示瞬时的，瞬变的，瞬时的值：

The thermometer gives the instantaneous temperature of the liquid.（温度计显示液体瞬间的温度。）

3.同义词：

瞬间的可用transient、momentary、fleeting、brief等替换。

下面是5个中英例句：

1. An instantaneous change in the weather meant we had to quickly adjust our plans.（天气迅速变化，我们不得不迅速调整计划。）

2. The light from the explosion was so bright and instantaneous that everyone was momentarily blinded.（爆炸发出的光线如此明亮而瞬间，每个人都被短暂地失明了。）

3. The instantaneous reaction of the cat saved it from falling off the table.（猫的瞬间反应使其免于从桌子上掉下来。）

4. The instantaneous acceleration of the spacecraft was overwhelming, as we blasted off into space.（宇宙飞船瞬间的加速度是惊人的，当我们进入太空时，我们被震撼了。）

5. The instantaneous appearance of the sun on the horizon was a beautiful sight to behold.（太阳在地平线上的瞬间出现是一道美丽的景象。）

instantaneous的中文翻译是“即时的”，读音为nstn`tenis。

例句：

1. The internet allows for instantaneous communication with people all over the world.（互联网让人们可以即时与世界各地的人交流。）

2. The car's acceleration was almost instantaneous, allowing it to reach top speed in a matter of seconds.（汽车的加速几乎是即时的，使它在几秒钟内就能达到最高速度。）

3. The photographer captured an instantaneous moment of happiness between the newlyweds.（摄影师捕捉到新婚夫妇之间的即时幸福瞬间。）

instantaneous的意思是"猝发的、即时的"，还有瞬间的的意思，发音是[.instn'teinjs]，instantaneous在英语中经常以名词形式出现，在《荷林斯高阶英汉词典》中，共找到96个与instantaneous相关的例句。

Instantaneous的释义

1.猝发的

例句:It's using Bluetooth 4, so it's pretty instantaneous. (因为用的是蓝牙 4，所以几乎是实时的。)

2.即时的

例句:A geomorphic instantaneous unit hydrograph model is developed based on linear dynamic wave. (建立了基于线性动力波的地貌瞬时单位线模型。)

3.瞬间的

例句:OZ supports instantaneous translation services for every language in the world, so you can enjoy conversation with anybody, no matter where they might hail from. (在OZ中 因为所有语言都会瞬间被翻译 所以您能和世界各地的人们愉快地交谈)

4.机、瞬间的

例句:Newton says that gravity is instantaneous, but Einstein says that the speed of light is the speed limit of the universe, so gravity can't be instantaneous. (翻译:牛顿说地心引力是瞬间的 但是爱因斯坦说 光速是宇宙速度的极限 那么地心引力就不可能是瞬间的)

用法及短语

instantaneous一般作为名词使用，如在instantaneous acceleration([化] 瞬时加速度)、instantaneous acceleration!(瞬时加速度)、instantaneous access([计] 立即存取, 立即访问)等常见短语中出现较多。

例句

1. OZ supports instantaneous translation services for every language in the world, so you can enjoy conversation with anybody, no matter where they might hail from. (翻译:在OZ中 因为所有语言都会瞬间被翻译 所以您能和世界各地的人们愉快地交谈)

2. Newton says that gravity is instantaneous, but Einstein says that the speed of light is the speed limit of the universe, so gravity can't be instantaneous. (翻译:牛顿说地心引力是瞬间的 但是爱因斯坦说 光速是宇宙速度的极限 那么地心引力就不可能是瞬间的)

3. A polarized multichannel camera used for measuring 2-D instantaneous vibration mode shapes is presented. (翻译:利用偏振多通道相机进行激光散斑照相，研测振动物体的二维瞬态振型。)

4. Post stack seismic attributes such as seismic energy fractile frenquecy, dipping angle variance, instantaneous dipping angleetc. can be used to predict fracture developing band. (翻译:利用地震能量分位数频率、倾角方差和瞬时倾角等叠后地震属性可对裂缝发育带进行定性预测。)

5. Progressive safety gear , instantaneous safety gear , oil buffer and rope brake and so on are star products of Huning. (翻译:渐进式安全钳、瞬时安全钳、液压缓冲器与夹绳器等安全部件是其主要产品。)

6. But I was also the kind of religious where it didn't matter where in the world I lived, I had friendship, instantaneous mutual aid. (翻译:也身处在这样一个， 我可以住在世界任何一个地方。我拥有能患难与共， 相互扶持的友谊。)

7. Considering that the Instantaneous Field of View (IFOV) of infrared seeker is small, a line-by-line directional spiral scan was proposed. (翻译:针对红外导引头瞬时视场较小的缺点，提出了分行螺旋式定向扫描技术。)

8. Forces and stress can be easily calculated with VAMP/VASP and used to relax atoms into their instantaneous groundstate. (翻译:力与张量可以用VAMP/ VASP 很容易地计算，用于把原子衰减到其瞬时基态中。)

9. Just a rabbi door, Jim per-hakan gessle was rabbi, the daughter of a mock the book write down the words are realistic instantaneous. (翻译:刚出拉比家的门，吉姆佩尔又被拉比的女儿戏弄了一通，书上写的话瞬时被现实。)

10. The "sunya" of Zong Baihua is limited and finite, instantaneous and eternal, resolvable and financial institutions, rational and non-rational dialectical unity. (翻译:宗白华的“空”是有限性和无限性、瞬时性和永恒性、消解性和融构性、非理性和理性的辩证统一。)

11. Now we can make nearly instantaneous, emotionally charged symbols out of something that's brand new. (翻译:现在我们可以用全新的事物创建 瞬间产生的情绪化的符号。)

12. After news of a huge bailout and wave of cutbacks last May, "there was an instantaneous drop in prices," said Pavlos Yeroulanos, minister of culture and tourism for Greece. (翻译:去年xx月在获知巨大的财政救助和裁员浪潮的消息后，“价格有一个瞬时的滑落”，希腊文化部长保罗耶鲁拉诺斯说。)

13. Strong instantaneous overload capacity enables it to be applicable for diversiform load. (翻译:瞬时过载能力强，可适用于多种负载。)

14. From the general taxpaying public, the reaction was almost instantaneous. (翻译:来自缴税的一般大众的反应十分迅速。)

15. But the kind of virtually instantaneous nature of its erection, and its being there, almost before you could believe that a response of this magnitude could be accomplished, is part of its extraordinary -- I don't know if beauty is the word -- but presence. (翻译:但是对于这个建筑的瞬时性， 和它的存在， 甚至在你可以相信 如此宏大的一个项目可以被完成之前， 我想这些就是它的非凡特性的一部分-- 我不知道用美丽这个词是不是合适-- 但是对于它的意义来讲完全合适。)