ball-point pen什么意思 ball-point pen音标、翻译、用法
ball-point pen音标
英 [bɔ:l pɔint pen]
美 [bɔl pɔɪnt pɛn]
ball-point pen翻译
n.
圆珠笔；
英英释义
ballpoint pen
n.a pen that has a small metal ball as the point of transfer of ink to paper
同义词：ballpointballpenBiro
ball-point pen用法
权威例句
Ball-point pen
Ball-point pen
Ball point pen
Ball point pen, ink and its eradicator system
Multivariate chemometrics for the forensic discrimination of blue ball-point pen inks based on their Vis spectra
Investigation of ball point pen inks by capillary electrophoresis (CE) with UV/Vis absorbance and laser induced fluorescence detecti...
What's on doctors' ball point pens?
What's on doctors' ball point pens? : The Lancet
Ball-point pen-light
Ball point pens
The analysis of dyes in ball point pen inks on single paper fibres using laser desorption ionisation time of flight mass spectrometr...
Ball-point pen device
Use of reversed-phase thin-layer chromatography for the identification of black inks from board felt markers and ball-point pens