空白带

目前识别水合物的主要依据是BSR和其上具有高速特征的空白带。

Bottom simulating reflector ( BSR ) and amplitude blanking zone with high velocity above BSR are the indicators of hydrate .

当BSR不存在，或由于水合物饱和度较高导致空白带特征不明显时，水合物的识别是未解决的问题。

It is difficult to recognize hydrate when BSR isn 't in existence or amplitude blanking is not obvious because of high hydrate concentration .

带一些音乐带和一些空白带

Some music tapes and some blank tapes

因此在天然气水合物研究中，对似海底反射以及空白带形成机理进行研究是非常必要的。

Therefore the research on the cause of BSR and blanking zone is very necessary in gas hydrate research .

我们有空白录像带吗？

Do we have a blank video ?

我们有空白录像带吗？

Have we got any blank videos ?

我想买些空白录音带，它们在这里比在唱片行便宜。

I want to buy some blank tapes . They 're cheaper here than at store .

我想把这电视节目录下来，但是找不到空白的录像带。

I want to record this television programme , but I can 't find any blank videos .

[qh]女：当然，我能问问是什么事么？[qh]男：你告诉她又出问题了，我们拿到的不是空白纸，而是带信头的信纸。

Can I ask what it 's about ? [ qh ] Man : You tell her there 's been a mix-up yet again . Instead of plain paper , we 've got headed paper .