round black lead pencil

用法例句

Analysis of Black Ballpoint Pen Inks by High Performance Liquid Chromatography;

黑色圆珠笔油墨的高效液相色谱法分析

RAMAN SPECTROSCOPY - BASED SEPARATION TO BLACK BALLPOINT INKS OF DIFFERENT FORMULATIONS;

激光拉曼光谱区分黑色圆珠笔字迹初探

Determination of writing sequence of black ballpen by Raman Mapping Spectroscopy

拉曼光谱面扫描成像判断黑色圆珠笔交叉笔画书写先后顺序

The essay is expected to fetch up to$ US700 at the auction, which takes place on December4, and is written in black ballpoint pen on both sides of the paper.

这篇用黑色圆珠笔写的文章长达一页，预计能在12月4日的拍卖中以700美元的价格被拍下。

A STUDY ON THE VARIATION OF BLUE BALLPOINT PEN INKS FT -IR SPECTRA BY TIME;

蓝色圆珠笔字迹色痕FT-IR光谱经时变化的研究

Dating of Ball Point Pen Ink Writings by Successive Measurements at Different Times;

多次测定法确定蓝色圆珠笔字迹形成时间

OPTIMIZATION OF THE BUFFER SYSTEM FO R THE CAPILLARY ELECTROPHORESIS ASSAY OF BLUE BALLPOINT P EN INK WITH O RTHOGONAL DESIGN;

正交法优化分析蓝色圆珠笔油墨的缓冲体系

Classification of blue ballpoint pen inks by principal component analysis

基于主成分分析的蓝色圆珠笔油墨分类研究

Discrimination of Blue Ballpoint Pen Inks by Nonaqueous Capillary Electrophoresis

非水毛细管电泳法区分蓝色圆珠笔油墨的研究

Can you give me two refills of each color for the ballpoint pen ?

能不能请价钱给这支圆珠笔每种颜色配两根替换笔芯？

Could you give me two refills of each color for the ballpoint pen?

能不能请你给这支圆珠笔每种颜色配两根替换笔芯?

Can you give me two refill of each color for the ballpoint pen?

能不能请给这支圆珠笔每种颜色配两根替换笔芯?

Classification of Blue Ballpoint Pen Inks and Blue Gel Pen Inks Using Chemometrics Methods

化学计量学方法对蓝色圆珠笔和签字笔油墨的分类研究

I looked all over for my pen.

我到处寻找我的圆珠笔。

I like to write with a ball-pen.

我喜欢用圆珠笔写字。

Determination of the Writing Age of Blue Ballpoint Ink by Gas Chromatography;

气相色谱法确定蓝色圆珠笔油墨字迹的形成时间

Study on natural ageing of blue ballpoint pen inks by ultraviolet-visual spectrophotometry;

紫外—可见光谱法研究蓝色圆珠笔色痕自然老化规律

Research of Blue Ballpoint Pen Inkblot Based on Confocal Micro-Raman Spectroscopy

基于共焦显微拉曼光谱的蓝色圆珠笔墨迹的研究