1、The returned signal from the sea bottom can be recorded by the recorder on a real time basis.
該記錄器對海底回波信息的記錄是實時的。

2、It is laid in the sea bottom and will rise to surface with its rocket propulsion.
它被儲存在海底和將使用它的火箭發(fā)動機快速上浮到水面。

3、Since Bohai Sea bottom is in all the time slow drop, so, why it unluckily so shallow?
既然渤海底部一直在緩慢下降，那么，為什么它偏偏又那么淺呢？

4、Is CO2 able to be stored and kept at the sea bottom in the form of hydrate?
二氧化碳是否能以水合物型態(tài)封存于海底？