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- polarized neutron diffraction technique 极化中子衍射法
- The two systems of government are polar opposites. 这两种政体正好相反。
- The issue has polarized congress. 该争论于国会分裂。
- Public opinion has polarized on this issue. 在这个问题上公众的意见已两极分化。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- polarized neutrons 极化中子
- Showing no optical activity in polarized light. 无旋光的极化光下无光学反应的
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- polarized neutron 极化中子
- Located or found in one of the Polar Regions. 环极的，围绕极地的位于或发现于一个极地区域中的
- A proton or a neutron, especially as part of an atomic nucleus. 核子质子或中心，尤指作为原子核的一个组成部分
- Fast neutrons are also captured by nitrogen. 快中子也可以被氮吸收。
- In spite of vigilance a polar bear escape from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
- Nuclei are composed of protons and neutrons. 原子核是由质子和中子构成的。
- Neutrons act differently from protons. 中子的作用不同于质子。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- Proton and neutron form a charge doublet. 质子和中子构成电荷双重态。
- Protons and neutrons have about the same mass. 质子和中子的质量差不多相等。
- Although they can swim, the polar bears are terrestrial animals. 北极熊虽然会游泳，但也是陆栖动物。
- The neutrons and protons form the core of the atom. 中子和质子构成了原子核。
