外场

We describe the “second quantized” Dirac theory in an (unquantized ) strong external field.

我们描述一种（非量子化）场中“二次量子化”狄拉克理论。

Still Captain Buller broke a window in the Kildare street club with a slog to square leg.

然而主将布勒朝左方场守场员猛击出一个长球，把基尔达尔街俱乐部玻璃窗给打碎了。