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- The seasons follow each other in rotation. 四季循环交替。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A rotation of personnel; crop rotation. 员工的轮流替换; 农作物的轮作
- 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
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- The rotation of crops keeps the soil healthy and fertile. 谷物轮种使土壤保持了肥力和高质。
- Proton and neutron form a charge doublet. 质子和中子构成电荷双重态。
- The sun appears to rise and set because of the earth's rotation. 因为地球在自转,看上去就有了日出和日落。
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- The chairmanship of the committee changes in rotation. 委员会主席一职是轮流担任的。
- Diphenylmethane would have a two proton peak. 二苯甲烷必定有一个二质子的峰。
- Nitroform is such a strong proton donor. 三硝基甲烷是一个极强的质子给予体。
- The electron continues to whirl about the proton. 电子继续绕着质子转。
- The proton and electron are certainly long-lived. 质子与电子当然可算长寿了。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Does the proton finally come to rest? 这个质子最终会静止吗?
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- An erotic rotation of the pelvis. 淫荡地晃动卖弄色相地扭动臂部的动作
- Proton Conductivity Study of Nafion? 复合膜的质子传导性能研究?
- And is therefore an acid (proton donor). 因此它又是个酸(质子供体)。