micrometer
名词 n.
英 /maɪˈkɹɒmɪtə/
美 /maɪˈkɹɑmɪtəɹ/|[maɪˈkɹɑmɪɾɚ]
英文释义
名词 n.
- A device used to measure distance very precisely but within a limited range, especially depth, thickness, and diameter.
-
US spelling of micrometre (“one-millionth of a metre”).
— A strain is usually expressed in μm/m (micrometer per meter), also known as microstrain, which has the symbol µε. You may also see “mV/V,” which refers to the output in millivolts per volt of excitation.
词形变化
词源
词源 1
From French micromètre, equivalent to micro- + -meter.
词源 2
Etymology tree
Proto-Indo-European *mey-der.?
Ancient Greek μικρός (mikrós)der.
English micro-
English meter
English micrometer
From micro- (“one millionth”) + meter.
Proto-Indo-European *mey-der.?
Ancient Greek μικρός (mikrós)der.
English micro-
English meter
English micrometer
From micro- (“one millionth”) + meter.
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数据来源: Wiktionary