Word · Frequency #12869
PT
铂
the chemical element platinum, a heavy grey-white metal that is resistant to corrosion
- 1.
n a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
点；处理时间
点；处理时间
In use
The jeweler certified that the ring is made of 950 pt, which means it is 95% platinum.
Because pt resists corrosion, it is often used in laboratory equipment.
The price of pt has risen sharply this year due to industrial demand.
pt be + adj.
此结构用于描述铂的物理或化学性质。
Pt is heavy.
铂很重。
pt be found in + noun
用于说明元素的自然存在位置。
Pt is found in some ores.
铂存在于一些矿石中。
pt be resistant to + noun
表示铂对某物的抗性。
Pt is resistant to corrosion.
铂耐腐蚀。
Connections
Collocations
- pt catalyst
- 铂催化剂
- The pt catalyst helps remove harmful gases from car exhaust.铂催化剂有助于去除汽车尾气中的有害气体。
- pt electrode
- 铂电极
- A pt electrode is often used to measure pH in the laboratory.实验室常用铂电极测量pH值。
- pt complex
- 铂配合物
- Cisplatin is a pt complex used to treat cancer.顺铂是一种用于治疗癌症的铂配合物。
- pt nanoparticle
- 铂纳米粒子
- pt nanoparticles are effective catalysts in fuel cells.铂纳米粒子在燃料电池中是有效的催化剂。
Synonyms
- platinum
- 铂（金属元素） · pt 是 platinum 的缩写形式，常见于科学或标签语境；正式书写时应写全称 platinum，且化学符号应为 Pt（注意大小写），与 pint、point 等缩写意义不同。
Learner notes
Memory Tip
把 Pt 联想成铂金首饰上的印记，比如 Pt950 代表含铂量 95%，看到 Pt 就想到铂金。
Context & Register
语域：formal 常见场景：化学符号、医学或材料学专业文献 这里的 pt 指化学元素铂（platinum）的符号，通常出现在化学式、医学或材料学等专业书面文本中，比较常见于正式场合；日常口语中一般不这样用。
Pronunciation & Spelling
The words kept, slept, crept, except and accept all end with the same rhyming sound /ept/ (spelled -ept or -pt in writing). Note that apt /æpt/ looks similar but has a different vowel sound, so it does not rhyme with them. The abbreviation pt itself is usually read as two separate letters, /ˌpiːˈtiː/, not as a single /pt/ sound.
High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.