寄普通邮件

I could have sent the photo by ordinary mail,but that would have taken at least four days.

我本可以用普通邮件来寄照片，但那至少要4天才能到。

Do you want to send it by air or by ordinary mail?

您是寄航空还是寄普通邮件？

And by air or ordinary mail?

是寄航空邮件还是普通邮件？

Very interesting Mongolia philately covers, sending by a Chinese stamps collector in Ulan Bator to Beijing China, Sending on Dec 31th 2008 and Beijing dater Jan 7th 2009, using of 1981 Mongolia space plan FDC cover, The cover set of 7, We have 8 sets on stock, because all cover franking with diffents Space subject and other stamps on envelop, so the buyer will receive a similar 7 covers one set.

我们寄往中华人民共和国和台湾的邮件收取运费和合并运费的计算方式与海外相同，即在收取单项物品的最高运费(最低4美元)的基础上每增加一项加收0.30美元。我们只采用中国邮政特快专递来运送中国大陆买家的订单，不接受普通挂号邮件作为邮寄方式，因此，不会为中华人民共和国买家调整运费，不同意此项运费计算方式的中国买家请勿出价。

Why don't you send your printed matter by surface mail That would be much cheaper.

为什么你不按普通邮件寄这些印刷品？那样要便宜得多。

It takes about two weeks to go surface mail from here to London.

普通邮件从这儿寄往伦敦要花两个星期左右的时间。

Why don't you send your printed matter by surface mail?

为什么你不按普通邮件寄这印刷品？

It take about two weeks to go surface mail from here to London.

普通邮件从这儿寄往伦敦要花两个星期左右时间。

B:all right.that comes to thirty dollars.why don't you send your printed matter by surface mail?

好，一共三十美元。为什么你不按普通邮件寄这印刷品？

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。