钢笔

This pen is green, this apple is green, this book is green, too.

找一支绿色的钢笔，绿色的苹果，绿色的书等

The products we plan to exhibit in this show are as follows: American TIFFEN steadicam filets,Italian CARTONI tripod,America ESA glasses and pens, mini-camera lens, American CAMMATE jib, German ARRI series lamp, American KINO-FLO cold light source lamp, German DEDO light, German OSRAM light bulbs, ARRI filter, ROSCO filter, French Transvideo monitor, Photoflex softbox, support attachment, Ewa-marine, German AC chrosziel as well as various types of TIFFEN,German B+W and England FORMATT color filters.

经营美国天丰公司的斯泰尼康减震器，意大利加通尼三脚架；美国ESA的眼镜，钢笔；微型摄像头，美国CAMMATE佳美吊臂；德国ARRI系列灯具，美国KINO-FLO冷光源灯，德国DEEOLGHT特图利灯，德国OSRAM欧司朗灯泡，ARRI色纸，ROSCO色纸，法国彩威显示器，快图辉柔光箱，易事背摄录机承托架，依华潜水包。

My pen is as good as new, though I've used it a year.

我的钢笔用了一年，还几乎是新的。

These pens retail at US$20 per piece.

这些钢笔的零售价是20美元。

I can't find my pen. It may be in your bag.

我找不到我的钢笔了，它可能在你的书包里。

I'll trade you my pen for your ball.

我拿我的钢笔换你的球。

I've got a ball pen.

我有一支钢笔。

I trade you my pen for your ball pen .

我用我的钢笔换你的圆珠笔。

A . There is a ball － pen and a pencil .

这里有一支圆珠笔和一支钢笔。

It's a book / pen / ball, yes it's a book / pen / ball.

它是一本书/一支钢笔/一个球，是的，它是一本书

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。