A float collar is placed at the top of the float joint and a float shoe placed at the bottom to prevent reverse flow of cement back into the casing after placement.

浮箍是放置于浮动接头之上的，而浮鞋则是放置于浮动接头之下，以防止水泥浆回流到套管内。

youdao

The sender is hard to put exactly float into the socket and the receiver is hard to receive/convert back to the exact float number.

发送者很难将完全浮动套接字和接收者很难接收/转换回确切数量浮动。

youdao

The sender is hard to put exactly float into the socket and the receiver is hard to receive/convert back to the exact float number.

发送者很难将完全浮动套接字和接收者很难接收/转换回确切数量浮动。

youdao