光速大约是每秒30万公里。

The speed of light is approximately 300,000 kilometers per second.

光速是大约30万公里每秒。

The speed of light is about 300,000 kilometers per second.

三年后，他拥有了价值30万美元的零件。

Three years later, he had parts worth $300, 000.

我们对本市30万对已婚夫妇做了一项关于无偿工作的调查。

We did a survey about unpaid work among 300,000 married couples in our city.

蓝鲸通常有30万磅重。

Blue whale typically has a weight of 300 thousand pounds.

本厂年生产能力达30万件。

Factory annual production capacity of 300000 pieces.

不少于30万元的注册资本；

Having a registered capital of no less than 300 000 yuan;

这种杂志一周售出30万册。

The magazine sells 300 000 copies a week.

我们一天的收成在30万枝到45万枝之间，具体要看天气。

We harvest between 300,000 in a day to 450,000 depending on the weather.

没什么能留在30万人的培养皿里。

None of these things can remain in a 300, 000-person Petri dish.