自来水笔

When, for instance, an ebonite fountain pen is rubbed with a silk handkerchief some of the atoms in the silk have one or two of their electrons knocked off.

举例 来说，当我们用一块丝手帕擦摩一支电木自来水笔时，丝绸中某些原子的一两个电子便会被擦掉，掉落下来的电子聚集在钢笔上使钢笔带上了一些多余的电子，从而产生了多余的负电，或者说一个负电荷。

He gave me a fountain pen, which I kept to this day.

他给了我一支自来水笔，我一直保存到今天。

He gave me a fountain pen which I kept to this day.

他给了我一只自来水笔，我一直保存到今天。

He is rooting about for his fountain pen .

他正在寻找他的自来水笔。

This fountain- pen is as good as any I have ever used.

这支自来水笔象我曾经用过的任何笔一样好。

My fountain pen wouldn't write.

我的自来水笔不能写字了。

C:Can I take a look at that Parker fountain pen?

我可以看看派克的自来水笔吗？

I pulled out my fountain pen and wrote a note.

我取出自来水笔写了个便条。

N and ball pens, so we can introduce your products to our customers.

w6 h/ g* L1 |' k 请寄给我们有关你方英雄牌自来水笔和圆球笔的资料，以便我们向顾客介绍你们的产' F0 E9 y- G， X/ 0 e； m

Despite his stocky frame and his paunch, the h and holding the fountain pen was delicate, thin-fingered

他身体墩实，挺着肚子，然而那只握着自来水笔的手却异常娇嫩，纤细。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。