He paused, strong in the conviction that he had sent the most dangerous arrow flying in the direction of cowperwood . 他停顿一下，深信他已经向柯帕乌放射了最危险的一箭。
The heat production in rocks due to radioactivity is highest in the acid rocks and lowest in the ultra-basic rocks . 岩石的放射作用热产率以酸性岩类最高，超基性岩类最低。
Essentially, all the neutrons and part of the gamma rays are emitted in the actual fission process . 从根本上说，所有的中子和一部分射线都是在裂变实际的过程中放射出来的。
The dikes surrounding dike mountain parallel a radial stress pattern that existed at the time the dikes were intruded . 岩脉山周围的岩脉与岩脉侵入时就已存在的放射状应力图像是相应的。
Both uranium and plutonium are radioactive, and their activity consists in the emission of what are called "alpha particles" . 铀和钚二者都具有放射性，它们的放射性包括放射所谓粒子。
Very few alpha particles from radioactive sources can travel more than 1 to 3 inches in air before being stopped . 在空气中从放射源放出的粒子在停止以前只有很少能穿过13英寸的距离。
The metaphase plate would thus be the null point between two equal but oppositely directed and acting groups of kinetochore tubules . 中期板大概是两个相等而方向相反的放射状着丝点微管群之间的平衡点。
Radioactivity provides an extremely sensitive method of analysis since disintegration of individual nuclei are monitored . 因此放射现象可以监视每一个核的裂变，因此放射现象提供了一个极灵敏的分析方法。
Radioimmunoassy(ria)is one of the most sensitive tehniques presently available for the diagnosis of viral antigens or antibodies . 放射免疫试验（RIA）是目前适合于诊断病毒抗原或病毒抗体的最灵敏技术之一。
In the deep mantle the highest possible concentration of radioactive materials is limited by the condition demanding temperatures below the melting point . 在地幔深部，放射物质最高的可能浓度受溶点以下的温度条件所限制。
