1
be made of titanium
用 made of 强调由可见材料制成，钛在此处作不可数名词。
The bicycle frame is made of titanium.
这辆自行车的车架由钛制成。
钛
先理解核心含义，再看它在真实句子里的用法。
钛
a strong, light, corrosion-resistant metallic element used in lightweight alloys
The bicycle frame is made of titanium.
这辆自行车的车架由钛制成。
A chemical element (symbol Ti), atomic number 22; it is a strong, corrosion-resistant transition metal, used to make light alloys for aircraft etc.
An atom of this element.
The bicycle frame is made of titanium, so it is both light and strong.
这辆自行车的车架由钛制成，因此既轻又坚固。
Aircraft engineers often choose titanium for parts that must withstand high temperatures.
飞机工程师常选用钛来制造必须承受高温的部件。
The surgeon replaced the damaged joint with a titanium implant.
外科医生用钛植入物替换了受损的关节。
用 made of 强调由可见材料制成，钛在此处作不可数名词。
The bicycle frame is made of titanium.
这辆自行车的车架由钛制成。
Titanium is used in aircraft engines because it is strong and light.
钛被用于飞机发动机，因为它坚固且轻。
Not this
Titaniums are very light.
Use this
Titanium is very light.
钛（titanium）是化学元素名称，作物质名词时通常不可数；表示该金属材料本身时不能用复数形式，动词也要用单数。应将 "Titaniums are" 改为 "Titanium is"，对应中文“钛很轻”。
Not this
I need a titanium for the implant.
Use this
I need titanium for the implant.
titanium 作物质名词不可数，前面不能直接加不定冠词 a；表示“一些钛材料”可用 "some titanium" 或直接用 "titanium"。去掉 "a" 后句子才符合英语习惯，对应中文“我需要钛来做种植体”。
Not this
The parts are made by titanium.
Use this
The parts are made of titanium.
表示“由某种材料制成”时，英语用 "made of" 或 "made from"，介词用 of，不用 by（by 用于表示施动者）。中文“由钛制成”的“由”容易干扰为 by，此处应改为 of，即“这些零件由钛制成”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
钛合金
The bike frame is made of a lightweight titanium alloy.
这辆自行车的车架由轻质钛合金制成。
二氧化钛
Titanium dioxide is commonly used as a white pigment in paints and sunscreen.
二氧化钛通常用作油漆和防晒霜中的白色颜料。
钛制框架
His eyeglasses have a durable titanium frame.
他的眼镜配有耐用的钛制框架。
钛植入物
The surgeon used a titanium implant to replace the damaged joint.
外科医生用钛植入物来替换受损的关节。
钛制髋关节
After the operation, she walked comfortably with her new titanium hip.
手术后，她带着新的钛制髋关节行走自如。
你击倒我，但我不会倒下；我是钛合金。
In Sia's song 'Titanium', the line 'I am titanium' uses 'titanium' as a metaphor for resilience.
在 Sia 的歌曲《Titanium》中，歌词 'I am titanium' 用 'titanium' 来比喻坚韧。
Use titanium naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
titanium 开头像 Titan（泰坦），泰坦巨人力量大，而钛金属又轻又强，记住这个联想即可。
语域：neutral 常见场景：材料与产品说明、航空与工程、科技报道 钛为科技词汇，多用于书面或专业场合，如材料、工业产品说明；日常口语中少见。可保持中性正式表达。
Genuine rhymes: uranium, cranium, and germanium share the stressed /eɪ/ and the following /niəm/ with titanium /taɪˈteɪniəm/. Lookalikes: aluminium and selenium end in -ium but have a different stressed vowel (/ɪ/ and /iː/), so they do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.