1
place electrodes on sth
place electrodes on 常用来表示把电极贴在皮肤等表面上。
The doctor placed electrodes on the patient's chest.
医生把电极放在病人的胸口。
电极；焊条
先理解核心含义，再看它在真实句子里的用法。
电极；焊条
a conductor used to make electrical contact with some part of a circuit
The doctor placed electrodes on the patient's chest.
医生把电极放在病人的胸口。
电流在电路中金属与非金属部分之间通过的端子。
The terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit.
用于与电路某部分接触的导体
a conductor used to make electrical contact with some part of a circuit
半导体器件中电荷的收集极或发射极。
A collector or emitter of electric charge in a semiconducting device.
The doctor attached an electrode to my chest to check my heart rhythm.
医生在我的胸口贴了一个电极来检查我的心律。
The electrode in the battery conducts electricity through the solution.
电池中的电极通过溶液传导电流。
Before the experiment, the students cleaned the electrodes with alcohol.
实验前，学生们用酒精清洁了电极。
place electrodes on 常用来表示把电极贴在皮肤等表面上。
The doctor placed electrodes on the patient's chest.
医生把电极放在病人的胸口。
attach...to 强调把电极与导线或物体连接起来。
Attach the electrode to the metal surface before taking the measurement.
测量前，把电极连接到金属表面。
electrode 常用复数形式 electrodes，指成套使用的电极。
These electrodes measure the electrical activity of the brain.
这些电极测量大脑的电活动。
Not this
Connect electrode to the circuit.
Use this
Connect an electrode to the circuit.
electrode 是可数名词，指单个电极时前面必须有冠词 a/an；原句缺少冠词，应加 an 表示‘一个电极’。
Not this
There are two electrode in the device.
Use this
There are two electrodes in the device.
two 后应接可数名词复数形式，electrode 的复数是 electrodes；原句用单数 electrode，与 two 不一致。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
电极放置
The surgeon marked the exact location for electrode placement.
外科医生标记了电极放置的确切位置。
碳电极
A carbon electrode is commonly used in battery research.
碳电极常用于电池研究。
正极，阳极
Oxygen gas forms at the positive electrode during electrolysis.
电解过程中，氧气在正极生成。
负极，阴极
Electrons flow from the negative electrode through the external circuit.
电子通过外电路从负极流出。
电极电位
The electrode potential of the metal was measured with a voltmeter.
用电压表测量了该金属的电极电位。
焊条，电焊条
The welder selected a suitable welding electrode for steel.
焊工选择了一根适合钢材的焊条。
Use electrode naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住 electrode 像 electric road（电路之路）：电极就是电流进出的路。
语域：formal 常见场景：电化学、电子工程、医学检测 electrode 属于技术性词汇，通常用于电化学、电子工程、医疗检测等专业或正式语境；日常口语中较少出现，多写作书面语。
code, node, mode, and rode rhyme with one another, all sharing the stressed /oʊd/ sound. Electrode, however, is /ɪˈlɛktroʊd/, with stress on /ɛk/, so these -ode words do not rhyme with it. Cathode and anode are related technical lookalikes, but their final syllables are /θoʊd/ and /noʊd/ and their stress falls earlier, so they do not rhyme with electrode either.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.