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1·In the reversible case, an external pressure is essentially equal to the internal pressure.

在可逆的情况下，外部压力基本上等于内部压力。

2·Without sustained external pressure it seems certain Mr. Cameron would still be hooked on the interests of big tobacco companies.

如果没有持续的外部压力，卡梅伦先生似乎肯定还会被大型烟草公司的利益吸引。

3·Without sustained external pressure, it seems certain Mr. Cameron would still be hooked on the interests of big tobacco companies.

如果没有持续的外部压力，似乎可以肯定的是，卡梅伦先生仍然会被大烟草公司的利益所迷住。

4·So there's an external pressure.

它是一个外部施加的压强。

5·External pressure is even greater.

来自外部的压力甚至更大。

6·So there's our external pressure.

这一项代表外部压强。

7·So this is the external pressure.

这是外界压强。

8·We'll never yield to external pressure.

我们决不向外界压力屈服。

9·External pressure is p3. It's higher than p2.

外部压强为p3，比p 2大。

10·First let's set the external pressure equal to zero.

首先，让外部压强为零。