That is why it is much easier to float when we are completely under the surface, head and all, than if we try to keep our heads out. (4)
这是我们将头和全身完全钻进水中进行漂浮，比我们试图把头保持在水面上作漂浮，要容易得多的原因。
Internal expansion joint shall be adopted to single tube side float head heat exchanger for avoiding from large temperature difference stress, when design pressure on shell side is larger.
设计单管程浮头式换热器时，为避免较大的温差应力，在壳程设计压力较大的状况下，常采用内置膨胀节的形式。
The breaking down reasons of the small float head bolts in an acid stripping unit and primary exchanger for feed water are analyzed.
对酸性水气提装置侧线与原料水一次换热器的小浮头螺栓的断裂原因进行了分析，并提出了相应的对策和推广新材料的建议。
I tried to float body on the water and put my head into water for practicing breath.
我试着把身体漂在水面，把头浸入水中练习呼吸。
I tried to float body on the water and put my head into water for practicing breath.
我试着把身体漂在水面，把头浸入水中练习呼吸。
应用推荐