Radon is the daughter of radium.

Objective Study on radon pollution in tunnel and protection from the radiation.

目的研究坑道内氡浓度及工作人员的氡防护.

A radioactive, inert, gaseous isotope of radon, with a half-life of 3.92 seconds.

锕射气氡的一种放射性的, 惰性的和气态的同位素, 其半衰期为3.

Scintillation flask method for measuring radon concentration in the air.

空气中氡浓度的闪烁瓶测量方法.

A radioactive, inert, gaseous isotope of radon a half-life of 3.92 seconds.

氡的一种放射性的, 惰性的和气态的同位素,其半衰期为3.92秒.

My uncles likes surfing very much. He is a good surfer.

我叔父非常喜欢冲浪. 他是个优秀的冲浪运动员.

We plan to climb the mountains, go fishing, and wind surfing, but most of all, relaxing.

我们计划去爬山 、 钓鱼 、 玩风浪板, 但最主要是轻松一下.

If anyone interrupts your web surfing, you're at work a mere click of your mouse.

如果你上网的时候有人突然打扰, 你要做的就是轻轻点击一下鼠标.

He wanted to go surfing but I argued him out of it.

他想去冲浪但我力劝他别去.

If the waves are big enough, we'll go surfing.

如果海浪大, 我们就去冲浪.

My surfing teacher, Sammy Hawkins, stood behind me in the water.

我的冲浪老师, 山米.霍金斯(何山姆), 站在我后方的水中.

The vertical surface of an ocean wave in surfing.

一个波浪从池水表面掠过.

Surfing is one of the most popular water sports.

冲浪是世界上最受欢迎的水上运动之一.

to go surfing

去冲浪

Surfing on the net has become part of people's life.

上网已经成为人们生活的一部分了.

If you spend any time surfing the Internet, you've probably encountered a few error messages.

在网上浏览时, 你可会发现一些错误信息.

Should I film Dan while he is surfing?

凯蒂:我要不要拍丹恩冲浪的样子?

What's the surfing like today?

今天冲浪情况如何?

Every year, water sports, especially swimming and surfing.

每一年, 水上运动, 特别是游泳和冲浪.

Surfing is one of the most popular water sports in the world.

冲浪是世界最受欢迎的水上运动之一.

I am a guy like who you are, living my live, surfing online at times.

反正我是一老实人, 勤勤恳恳的过日子, 偶尔偷个小懒上网溜溜.