I'd like to send this by air mail, please.

Are these stamps also good for air-mail going out of the country?

这些邮票也可以用来往国外寄信 吗 ?

无师自通 校园英语会话

Do you happen to know the air-mail rate to China?

请问往中国寄东西的航空邮价是 多少 ?

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How much does it cost by air mail?

空运多少钱?

口语例句

I sent a letter by air mail.

我寄出一封航空信.

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Please buy some air mail stamps for me.

请给我买几张航空邮票.

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Send the parcel by air mail, please.

请用航空邮件寄包裹.

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Air mail is quicker than sea mail.

航空邮寄比海上邮寄快.

《简明英汉词典》

He was an Air Marshal before retirement.

他退休前是空军中将.

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Air Marshal Gordon Black

空军中将戈登∙布莱克

《牛津高阶英汉双解词典》

Therefore, outlet air temperature tends to decrease as air mass flow rate increases.

因此, 流出气流的温度呈现出随气流量的增加而降低的趋势.

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However, increase of heat transfer rate is less than of air mass flow rate.

但是, 增加的传热率小于空气质量流量.

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Thunderstorm form when a warm air mass is forced by a cold mass at a front.

当暖气团在锋面处受到冷气团的作用时,就会形成雷暴雨.

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However, increase of heat transfer rate is less than that of air mass flow rate.

然而, 传热率的增加幅度要低于气流量的增加量.

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By the Siberian winter cold air mass control, the prevalence of northerly winds, cold climate.

冬季受西伯利亚冷气团控制, 盛行偏北大风, 气候寒冷.

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The relational expression between material transmit mass and fluidized air mass was obtained also.

试验还得到了物料输送量与流化空气量的关系式.

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An air mass rises for a number of reasons.

由于多种原因,一股气团已经生成.

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Higher heat transfer rate as air mass flow rate increases.

高等传热利率空气质量流量的增加.

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The products of combustion and of industrial processing are contained with a confined air mass.

燃烧和工业过程产物被封闭在局部气团的地区中.

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The major controlling influence is the inflow of a cold , dry, air mass.

主要支配的影响是干冷气团之流入.

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Recycle your old mobile phone and get up to 750 air miles in exchange.

回收你的旧手机,可以兑换高达750英里航空线.

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