| Expression | 平面规，测平仪在精密金属加工中用于测定平面表面精度的金属平板 |
|---|---|
| Meaning | A flat metal plate for gauging the accuracy of a plane surface in precision metalworking. |
| Reading | píng miàn guī， cè píng yí zài jīng mì jīn shǔ jiā gōng zhòng yòng yú cè dìng píng miàn biǎo miàn jīng dù de jīn shǔ píng bǎn |
Tags: hsk4-limited2-part4
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