铅笔芯

令他吃惊的是，他发现蜡烛里的碳已经形成了纯碳的四种形态，包括：钻石、石墨和铅笔芯。

To his surprise , he discovered that the carbon in the candle wax had formed all four types of pure carbon , including diamonds and graphite , or pencil lead .

普通所谓的铅笔芯其实是石墨，一种三维结构的碳。

Ordinary so-called pencil lead is graphite , a three-dimensional form of carbon .

铅笔芯修饰聚苯胺制作微型复合pH电极的性能

Performance of a Composite Miniature pH Electrode Made of Pencil Core Modified with Polyaniline

在铅笔芯电极上Zn（Ⅱ）伏安特性的研究

The Study on Voltammetric Characteristics of Zn (ⅱ) with Pencil-Core Electrodes

用1-（2-吡啶偶氮）-2-萘酚（PAN）修饰铅笔芯电极研究锌的差分脉冲阳极溶出伏安特性。

This paper discusses the differential-pulse anodic stripping voltammetric characteristic of Zinc on pencil-core electrode modified with 1 - ( 2-Pyridyl-Azo ) - 2-Naphthol ( PAN ) .

这种铅笔芯制造法沿用至今。

This method of manufacture remains the one in use today .

中国一位女学生的手臂中已经拔出来了16根铅笔芯。

A schoolgirl in China has had 16 pencil ends removed from her arm .

生产铅笔芯用挤棒机

Extruding machine for making pencil leads

如果你要多加一根手指的话要浪费好多铅笔芯呢，他说。

' That is a lot of pencil mileage if you add another finger ' he said .

以铅笔芯折断产生信号为模拟源进行了试验验证。

Experiments were carried out on sheet metal with the signal of pencil lead breaking as simulating source .

医生表示，铅笔芯已经在她的手臂里约一周了，导致了炎症。

Doctors said the pencil ends had been embedded in her arm for about a week , leading to inflammation .

对热障涂层进行铅笔芯断裂的定位分析验证了该方法的准确性。

The location analysis results of the pencil lead breaking test on thermal barrier coating showed the accuracy of this method .

被广泛应用于制作冶炼上的高温坩埚、机械工业的润滑剂、制作电极和铅笔芯；

It is widely used to manufacture high-temperature crucible used in metallurgy , lubricant used in the mechanical industry , electrode and pencil lead ;

它是在直尺一端连接的卡边上设置了放铅笔芯的筒形圆孔和固定螺丝。

A fixing screw and a cylinder-shaped circular hole for placing leads in are arranged on one lamping edge which is connected with one end of a ruler .

为了提高其强度和顺滑性，还要用一种滚热的混合物处理铅笔芯，其中包括固体石蜡、经过氢化处理的天然脂肪和产自墨西哥的大戟石蜡。

To increase their strength and smoothness the leads are then treated with a hot mixture which includes candelilla wax from Mexico , paraffin wax , and hydrogenated natural fats .

大气常温常压状态理论上会让钻石变成和铅笔芯一样的结构。

In theory , at atmospheric pressure and lower temperature chemical changes are liable to take place that change diamond into graphite , similar to the stuff pencil leads are made of .

贵航300医院的医生于9月19日给她做了手术，拔出了总计16根铅笔芯，最长的竟有4厘米（1.5英尺）长。

Doctors from Guihang 300 Hospital carried out the surgery on September 19 , removing a total of 16 pencil ends , the longest of which is four centimetres ( 1.5 inches ) .

本实用新型提供一种由铅笔芯和铅笔体组成的三棱铅笔，其特征是：在铅笔芯外围设置一三棱柱形铅笔体。

The utility model provides a trigonal pencil which consists of a pencil core and a pencil body , and is characterized in that the trigonal pencil body is arranged on the periphery of the pencil core .

HB的铅笔铅芯颜色较浅，不能涂机读卡。

The color of an HB pencil lead is too light to be read by the machine .

本文采用可见分光光度法测定了铅笔内芯中可溶性铅的含量。

In this article , the dissoluble lead in the2b pencil 's interior was determined by spectrophotometry .

我首先找到的是FiftyThree公司推出的Pencil笔（售价60美元以上），它的造型让人联想起木工铅笔，胡桃木加铅笔芯的搭配更强化了这种感觉。

My search began with Pencil from FiftyThree ( $ 60 and up ) . Its chiseled form is reminiscent of a carpenter 's pencil , and its walnut or graphite housing underscores the reference .

每一根木条中开了一条只有铅笔直径一半宽的槽，两个木条用胶粘合在一起，铅笔芯置于两个木条中间。

Each one was grooved to half the thickness of a pencil lead . Two slats were glued together with the lead between .