81.MF transmitter is in normal working order , but HF transmitter is out of order.

中频发射能正，高频发射故障。

No HF has formed yet, so it's initial concentration is 0.

尚未形成 HF， 因此其初始浓度为 0。

490. All of our VHF transmitters have failed, now transmitting on HF radio.

490. 我们所有甚高频发射都出现故障，现在用高频无线电发射。

Let's do this for hydrogen fluoride, or HF, an integral part of the process of refining gasoline.

让我们对氟化氢 (HF) 执行此操， 它是精炼汽油一个组成部分。

For the HF the total is 2x molar.

对于 HF， 总数是 2 倍摩尔。

Since 1 mole of H2 and 1 mole of F2, combine to form 2 moles of HF.

由于 1 摩尔 H2 和 1 摩尔 F2， 结合形成 2 摩尔 HF。

At equilibrium, under these specific conditions the concentration of HF is 2x, or 2 x 0.968, which equals 1.94 molar.

在平衡时，在这些特定条件下， HF 浓度为 2x，或 2 x 0. 968，等于 1. 94 摩尔。

We can say that the H2 and F2 will each lose 'x' moles per liter while the HF gains 2x moles per liter.

我们可以说 H2 和 F2 每升都会失去“x” 摩尔，而 HF 每升增加 2 倍摩尔。

Since 1 mole of H2 and 1 mole of F2, combine to form 2 moles of HF. We can say that the H2 and F2 will each lose 'x' moles per liter while the HF gains 2x moles per liter.

由于 1 摩尔 H2 和 1 摩尔 F2，结合形成 2 摩尔 HF。 我们可以说 H2 和 F2 每升都会损失“x” 摩尔，而 HF 每升增加 2 倍摩尔。