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use a spectrometer to do sth
use...to do sth 表示用分光计做某事。
Researchers use a spectrometer to analyze the chemical composition.
研究人员使用分光计分析化学成分。
质谱仪
先理解核心含义，再看它在真实句子里的用法。
质谱仪
a spectroscope that produces a mass spectrum by deflecting ions through a thin slit and measuring the ion current with an electrometer
Researchers use a spectrometer to analyze the chemical composition.
研究人员使用分光计分析化学成分。
此处按英文释义指质谱仪（mass spectrometer），而非泛指分光计。
测量化学物质对光吸收的光学仪器；通常绘制吸收对波长或频率的图谱,所得图形用于识别存在的物质及其内部结构。
An optical instrument for measuring the absorption of light by chemical substances; typically it will plot a graph of absorption versus wavelength or frequency, and the patterns produced are used to identify the substances present, and their internal structure.
通过将离子偏转至狭缝并用电位计测量离子电流以获得质谱的质谱仪
spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer
The technician adjusted the spectrometer until the ion current became stable.
技术员调整了质谱仪，直到离子流变得稳定。
These spectrometers can identify different compounds by measuring their mass-to-charge ratio.
这些质谱仪可以通过测量质荷比来识别不同的化合物。
We placed the solid sample in the spectrometer and recorded the resulting mass spectrum.
我们把固体样品放入了质谱仪，并记录了得到的质谱。
use...to do sth 表示用分光计做某事。
Researchers use a spectrometer to analyze the chemical composition.
研究人员使用分光计分析化学成分。
主语是分光计时，谓语常用 measure、analyze 等动词。
The spectrometer measures how much light is absorbed by the sample.
分光计测量样品吸收了多少光。
for 后接用途，说明分光计的专门用途。
This spectrometer for infrared analysis is very sensitive.
这台用于红外分析的分光计非常灵敏。
Not this
We spectrometred the gas sample.
Use this
We analyzed the gas sample with a spectrometer.
spectrometer 是名词，不能当动词用；要表达“用光谱仪分析”需使用 analyze 等动词再加 with a spectrometer。
Not this
We need spectrometer to measure the light.
Use this
We need a spectrometer to measure the light.
spectrometer 是可数名词单数，前面需加冠词 a。
Not this
There are several spectrometer in the lab.
Use this
There are several spectrometers in the lab.
several 后接可数名词复数，spectrometer 的复数形式是 spectrometers。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
质谱仪
The lab uses a mass spectrometer to identify unknown compounds.
该实验室使用质谱仪来鉴别未知化合物。
光学光谱仪
An optical spectrometer measures the intensity of light at different wavelengths.
光学光谱仪测量不同波长下光的强度。
便携式光谱仪
They checked the metal with a portable spectrometer at the construction site.
他们在建筑工地用便携式光谱仪检查了金属。
高分辨率光谱仪
This high-resolution spectrometer reveals fine details in the spectrum.
这台高分辨率光谱仪能显示光谱中的精细细节。
校准光谱仪
Always calibrate the spectrometer before starting your measurements.
开始测量之前，一定要校准光谱仪。
光谱仪读数
The spectrometer readings showed a sharp peak at 450 nm.
光谱仪读数在450纳米处显示出一个尖锐的峰。
Use spectrometer naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
spectr（光谱）+ meter（测量）：把光按波长拆开并测量的仪器，就是分光计。
语域：formal 常见场景：scientific papers、laboratory reports、instrument manuals spectrometer 是科学仪器的专业名称，通常出现在学术或技术性语境，如论文、实验报告和仪器说明书中，而非日常口语。
这些词与 spectrometer 押韵：thermometer, barometer, speedometer, odometer（重读元音为 /ɑ/，结尾为 /mətɚ/）。perimeter 和 diameter 虽也以 -meter 结尾，但重读元音不同（分别为 /ɪ/ 和 /æ/），是形近词而非押韵词。
Dictionary facts from ECDICT, WIKTIONARY.