您要查找的是不是：
- The cabin has a flat stone for a threshold. 这间小屋用一条扁平的石头做门槛。
- The treaty will be the threshold of lasting peace. 这个条约将成为持久和平的开端。
- Lead aprons shield people from radiation. 铅做的工作裙可使人免进辐射。
- He was on the threshold of his career. 他的事业刚刚起步。
- Radiation reached unheard-of levels. 辐射作用已达到前所未有的程度。
- He had never crossed the threshold of a bar before. 他过去从未进过酒吧的门。
- Scientists are now on the threshold of an important discovery. 科学家们很快就会有一项重大发现。
- The earth's atmosphere filters out much of the sun's radiation. 地球大气层可以滤掉太阳的大部分射线。
- stimulated radiation threshold 受激辐射阈值
- The tax threshold for a single pensioner is 450 dollars. 单身养老金领取者的征税起点是450美元。
- In the accident, the workers received a heavy dose of radiation. 在这次事故中，工人受到大剂量的辐射。
- The most terrifying aspect of nuclear bombing is radiation. 核弹轰炸最可怕的一面是辐射。
- The court is not legally justified in stopping at the threshold of the case. 一开始就使案件停止不前，法院这样做是完全不合法的。
- The body cannot tolerate such large amounts of radiation. 身体经不住那么大剂量的放射线。
- They are at the threshold of a new career. 他们正要开始干一番新的事业。
- The news of the radiation leak caused widespread public alarm. 辐射泄露的消息引起了公众的普遍恐慌。
- radiation threshold 辐射阈
- To expose to or reveal by radiation. 暴露于射线用辐射手段暴露或发现某物
- An adiabatic wall must be able to block radiation. 绝热壁必须能屏蔽辐射。
- There must be a threshold of thermal noise. 必有一个热噪声的门限值。
