bty

bty watch loses two minutes a week.

我的表一星期慢二分钟。

For cold stream, the major streams needed heat duties are BTY and YY, and are mostly in the middle and bottom temperature intervals.

对于冷流体，需要热负荷的冷流体主要是流体拔头油（BTY）和原油（YY），且集中在中低温度间隔内。

Betty: Her home is the closest to the school, so she walks. Does Dad always go to work bty taxi?

贝蒂：她的家里学校最近，因此她走路上学。爸爸总是乘出租车上班吗？