1.
Positive ions drift downward, negative ions drift upward.
正离子向下漂移，负离子向上漂移。
2.
In the region where the corona exists, large numbers of positive and negative ions are formed.
在存在电晕的区域，形成了大量正离子和负离子。
3.
In some way, positive and negative ions are developed in a thunderstorm.
在雷雨中，正离子和负离子以某种方式形成。
4.
Measurement of the Stability of a Ba~+ Ion Frequency Standard
钡正离子频率标准稳定度的测量(英文)
5.
THE TEACHING STUDY OF REACTIVE INTER-MEDIATE-CARBONIUMIONS;
有机活性中间体—碳正离子的教学研究
6.
The positive and negative ions become separated or dissociated.
正负离子彼此分开或解离。
7.
a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus.
带正电的氢离子，即常态的氢原子核。
8.
A molecule carrying both a positive and a negative charge.
两性离子带有正负电荷的分子
9.
Linear Dispersion Relation for Electron-positron Plasma in Relativistic Regime
相对论正负电子对等离子体色散关系
10.
Having only one metal ion or positive radical.
只有一个金属离子或正基的
11.
As the brother and sister were about to rise from the table, there came a knock at the door.
正在兄妹俩要离开桌子时，有人敲门。
12.
Applying equally to both positive and negative ions.
双极性的等同地适用于正负离子的
13.
A true electrolyte consists of ions in the pure state.
真正的电解质在纯态下由离子组成。
14.
An Analysis of the Finite Word Length Effects on Orthonormal Discrete Wavelet Transform
正交离散子波变换有限字长效应分析
15.
Study on the Characteristics and Structures of Cathode Materials LiCo_xNi_(1-x)O_2 for Lithium Ion Battery;
锂离子电池正极材料LiCo_xNi_（1-x）O_2的研究
16.
Synthesis and Characterization of LiMn_2O_4 as Catho de Materials for Lithium Ion Batteries;
锂离子电池正极材料LiMn_2O_4的合成与表征
17.
Study of LiFePO_4 as Cathode Material for Lithium-Ion Battery;
锂离子电池正极材料LiFePO_4的制备与改性
18.
Preparation and Modification of LiNiO_2 Cathode Material for Lithium-ion Batteries;
锂离子电池正极材料LiNiO_2的制备与修饰