我出了一头牛换它。
“我应该在这桩交易里得到点什么，”农夫说，“用一只肥鹅换一头猪，真的！”
"I ought to have something into the bargain," said the countryman; "give a fat goose for a pig, indeed!"
计算得出，由于热流计测头的出现，对流换热系数的变化会给热流测量带来较大误差。
Conclusions can be drawn that changes of the convective heat transfer coefficients can bring error because of the appearance of heat flux sensors.
刚换不久的客车左前导向轮制动鼓轴头在客车行驶中突然断裂而引起翻车事故。
Fracture of shaft head of brake drum for the left front pilot wheel which was just installed caused the automobile to turn over.
配置了先进的自动万能铣头及60把切削刀具的自动换刀刀库。
The advanced versatile auto mill head and 60 cutting tools in stock can be used.
不要记在手机里、不要使用应用或者提醒。就是一个简单的便签，如果你头一天完成了，第二天再换一张。
No cellphones. No apps. No Reminders. Just stick notes. The point is to keep it there until the next day and replace it only if you have done it.
不要记在手机里、不要使用应用或者提醒。就是一个简单的便签，如果你头一天完成了，第二天再换一张。
No cellphones. No apps. No Reminders. Just stick notes. The point is to keep it there until the next day and replace it only if you have done it.
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