And doctors monitor the transplanted organs by detecting typical molecules in blood ; usually a triple q ms fits this role so well 现在，在器官移植领域，医生也开始使用质谱来检测受体的排异状况，这通常是由三重四极杆质谱完成的。
Standard test method for analysis of isotopic composition of uranium in nuclear - grade fuel material by quadrupole inductively coupled plasma - mass spectrometry 四极感应耦合等离子质谱法分析核纯级燃料中铀的同位素组分的标准试验方法
Furthermore , problems easy to make mistake are demonstrated , for instance , grounding resistance of large grounding grid is impedance 研究论证了被一些研究者错误理解的关于大型地网接地电阻是阻抗、四极法及其倒相法测量结果为阻抗等问题。
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 摘要通过等效势能图，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。
Based on theory and experiences , this paper has discussed how to choose assistant electrode distance , large - current power , measuring points , measuring lines , etc . in detail 结合理论和实践经验，着重讨论了四极法辅助极距离、大电流电源、地网测量点、测量线的选择等问题。
It is important that acoustic test is applied to valve leakage testing and evaluation . quadrupole sources come from leaking gap . dipole sources occur in complex structure valves through analyzing leak in valves 通过对承压阀门内漏过程分析表明，在阀门湍流流场中，因为有泄漏缝隙的存在，必将产生四极子声。
Moreover the paper makes forth of the hypothesis of optimizing the beam quality . through measuring the emittance , the facility can change the parameters of magnetic quadruple lenses to optimize the beam quality in real - time 同时提出了利用发射度测量装置来监测束流品质进而改变磁四极透镜相关参数以实现实时地对束线品质优化的设想。
The analytic result shows the higher fieldunification is produced between contact gap by the coil type double - pole amf contact structure , and its intension is over 2 times than quadrupolar contact structure when they are in same current 分析结果表明,这种线圈式两极纵向磁场触头结构在触头间隙上产生的纵向磁场分布均匀程度较高,强度要比线圈式四极触头结构同等电流下大两倍。
Besides , it has been proved that four - electrode method is suitable for measurement of grounding resistance , which disposes current electrode and voltage electrode according to triangle . finally this paper has corrected one wrong parlance that inherent error exists in four - electrode method 通过理论和实践证明了四极法适用于电流、电压极按三角布置测量接地电阻，并纠正了其他文献关于四极法存在固有误差的问题，得出四极法的固有误差和三极法一致的结论。
