四极的

By exciting an even parity quadrupole mode (the m=0 low-lying mode), it is found that there is a transfer of energy to a mode at twice the original frequency (the m=0 high-lying mode).

通过激发一个低能态偶宇称的四极子模，发现在该模和频率为该模两倍的高位模之间存在能量转移。

By means of the effective potentials and with the phase-plane method,the properities of the orbits of particles in the gravitational field with mass quadrupole moment are studied.

通过等效势能图，并利用相平面分析的方法，研究了质量四极矩引力场中粒子轨道的性质。

The structure of quadrupole mass spectrometers and the quantitative analysis principle of gas analysis mass spectrometers are described.

叙述了四极质谱的结构和气体分析质谱的定量分析工作原理。

It is identified that the energy distribution centre is about 20-25 eV and suits the quadrupole mass analysis.

得出了离子能量分布的中心在20～25eV适于用四极质谱分析的结论。

A detailed discussion is carried out on some basic problems related with the coupling loop of radio frequency quadrupole with intense beams.

详细讨论了强流射频四极加速器高频输入耦合环的一些基本问题，完成了高频输入耦合环的初步物理设计。

The causes of disturbing electron current in quadrupole mass filter with Farady cylinder as an ion detector are described.

本文介绍了用法拉第筒作为离子检测器的四极滤质器存在干扰电子流的原因。

Since the general solution of this method is analytic series of scalar potential, electric field intensity could be obtained by first derivation.

在四极场的计算中，该方法具有表达式简单，求解变量少，而且计算精度和效率高的优点。

It is demonstrated experimentally that the anharmonic property of the quadrupole trap can be exploited to cool trapped atoms by modulating the trap potential anisotropically.

通过周期性地调制势阱，从实验上证明了四极阱的非简谐特性可以被用来冷却被囚禁的原子。

Methods:For clean-up and concentration solid phase extraction with OASIS HLB cartridges were used,or membrane filter was used to remove dirties.

水样经Waters Oasis HLB 固相萃取净化，应用超高效液相色谱/电喷雾串联四极杆质谱仪多离子反应监测定量法检测莠去津、灭草松，建立了定量检测生活饮用水中莠去津、灭草松的快速、准确、高灵敏度的方法。

The detection data were judged immediately with the analysis software by editing MACRO for identification of metformin, phenformin, glibenclamide, gliclazide, glimepiride, gliquidone, glipizide and acarbose in samples with high sensitivity.

分析仪器为高效液相色谱－单四极杆质谱检测器，使用编辑好的MACRO数据分析软件，可以迅速得到胶囊和片剂类保健食品中二甲双胍等8种降糖药物的检测结果。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。