In the Arctic, the temperature can reach as low as -70°C.

在北极，温度可以低至-70°C。

Her mood was as low as falling into an abyss.

她的心情像掉进了万丈深渊一样低落。

The equipment can detect radiation as low as 0.5 mCi.

设备可以检测到低至0.5毫居里的辐射。

The sensor can detect gas concentrations as low as 0.1 ppm.

传感器可以检测到低至0.1百万分之一的气体浓度。

The new sensor can detect pollutants at levels as low as 10 ppb.

新传感器可以检测到低至10十亿分之一的污染物。

Temperatures can fall as low as -20 degrees.

气温可以降到零下20度。

369 is about as low as we can go .

$369大约是我们能出的最低价格。

As low as reasonably achievable(ALARA)principle

可合理达到的尽量低原则

Meanwhile, overnight temperatures can drop as low as 5F (-15C).

同时，夜间的温度可以低至零下15度。

Does it mean giving as many drugs as needed to get the BP as low as possible?

是否意味为了使血压尽可能低，而应尽可能给予足够多的药物？