英语词汇“fountain pen barrel”的读音、翻译、释义、用法及例句-开邑网

词汇	fountain pen barrel
释义	fountain pen barrelfountain pen barrel1.■钢笔杆
随便看	critical heat insulation diameter critical height critical height of center of gravity critical height of subgrade critical high temperature critical humidity critical hydraulic gradient critical hydraulic jump critical illumination critical impact velocity critical impulse critical impulse flashover voltage critical incident technique critical inclination critical initial metacentric height critical input critical intensity critical interval critical isotherm criticality criticality analysis criticality category criticality measurement criticality safety criticality test

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