1
the cathode of [device]
用 of 短语表示阴极属于哪个装置或部件。
The cathode of a vacuum tube emits electrons.
真空管的阴极发射电子。
阴极
先理解核心含义，再看它在真实句子里的用法。
阴极
a negatively charged electrode that is the source of electrons entering an electrical device
The cathode of a vacuum tube emits electrons.
真空管的阴极发射电子。
电池或其他电偏振器件中正电流向外流出的电极(电子流入)。相对于同一器件的阳极,其电压可为负或正,具体取决于器件是负载还是电源。
An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a positive voltage with respect to anode of the same polarized device (depending on whether the device is a load or a source, respectively).
阴极:带负电荷的电极,是电子进入电气设备的来源
a negatively charged electrode that is the source of electrons entering an electrical device
发生阳离子化学还原反应的电极,通常导致金属沉积在电极上。
The electrode at which chemical reduction of cations takes place, usually resulting in the deposition of metal onto the electrode.
正极:原电池或蓄电池中供给电流的正极端子
the positively charged terminal of a voltaic cell or storage battery that supplies current
In a battery, electrons flow from the anode to the cathode.
在电池中，电子从阳极流向阴极。
The lab assistant cleaned the cathode before starting the experiment.
实验助手在开始实验前清洁了阴极。
These cathodes are made from a special metal alloy.
这些阴极由一种特殊的金属合金制成。
用 of 短语表示阴极属于哪个装置或部件。
The cathode of a vacuum tube emits electrons.
真空管的阴极发射电子。
介词 at 表示位置，常用于说明反应发生在哪一极。
Reduction occurs at the cathode during electrolysis.
电解过程中，还原反应发生在阴极。
表示两极之间时用 between...and...，阴极常与阳极（anode）成对出现。
The voltage is measured between the cathode and the anode.
电压是在阴极和阳极之间测量的。
Not this
The cathode in these batteries are made of lithium.
Use this
The cathodes in these batteries are made of lithium.
汉语没有复数变化，学习者容易对可数名词漏用复数。cathode 是可数名词，表示多块电池中的电极时应用复数形式 cathodes，与后面的复数动词 are 保持一致。
Not this
The anode is the electrode that emits electrons.
Use this
The cathode is the electrode that emits electrons.
anode（阳极）和 cathode（阴极）容易混淆。在电子设备中，阴极是带负电、发射电子的电极，阳极与之相反。要表示“阴极是发射电子的电极”，应使用 cathode 而不是 anode。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
阴极射线管
The old television used a cathode ray tube to display images.
那台旧电视机使用阴极射线管来显示图像。
冷阴极
Cold cathodes are often used in neon lamps.
冷阴极常用于霓虹灯中。
热阴极
A hot cathode emits electrons when heated.
热阴极受热时会发射电子。
阴极射线
Cathode rays are beams of electrons.
阴极射线是电子束。
阴极材料
The battery's cathode material affects its performance.
电池的阴极材料影响其性能。
铜阴极
The refinery produced high-purity copper cathodes.
炼铜厂生产出高纯度铜阴极。
Use cathode naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
cathode 和 cation 都以 cat 开头：阴极(cathode)吸引阳离子(cation)。想象一只猫被负极吸住，毛全竖起来。
语域：formal 常见场景：electronics、physics、electrochemistry 通常用于技术或科学语境，如物理学、电子学和电化学，日常口语中较少使用。
与 cathode 押韵的词有 anode、electrode、diode、episode、code，它们都以 /oʊd/ 结尾。注意 method /ˈmɛθəd/ 拼写与 cathode 有相似处，但末尾读 /əd/，不押韵；father 中的 th 读 /ð/，也与 cathode 的 /θ/ 不同。
Dictionary facts from ECDICT, WIKTIONARY.