快好知 kuaihz


magnetic field造句
31. They cooled the sample below its critical temperature so it became superconducting, then applied an increasingly strong magnetic field. 32. Not surprisingly these force patterns resemble the pattern of magnetic field lines across the aperture of a quadrupole magnet. 33. In the case of the human body, that steady field is the Earth's magnetic field. 34. Earth has an actively convecting dense metallic core that produces and sustains a strong magnetic field. 35. After an initial slice selection procedure, the nuclear magnetic resonance signal is subjected simultaneously to two modulated magnetic field gradients. 36. The radio waves, magnetic field and computer technology combine to produce vivid images of the body's soft tissue. 37. When lava solidifies, its tiny ferrous particles align themselves, like magnetic needles, with the earth's magnetic field. 38. In a magnetic field, a moving charged particle is deflected from the straight path along which it was travelling. 39. Magnetic field, auroras, magnetic declination and magnetic field reversals. 40. The pulse magnetic field incises capillary vessel. 41. In communications, a disturbance in the ?earth's? magnetic field, associated with abnormal solar activity, and capable of seriously affecting both radio and wire transmission. 42. The principle and method for measuring the resistance under zero background magnetic field, critical current density and mechanical intensity are presented and some results are given. 43. Scientists will see in the magnetic field a direct correlation of the events of the Earth. 44. Once an electric current is polarized, it flows more easily through a material whose magnetic field is parallel with its polarization than through one that is antiparallel. 45. The magnetic field sensitivity data are obtained by recording the response of the magnetometer for about 40s, performing a fast Fourier transform (FFT). 46. This work is very useful for detecting weak magnetic field technology and the research of interferential fiber optic sensors. 47. The improvement of the original 1.2m cyclotron to enhance its accelerated particles-energies with increasing main magnet exciting current and reshimming the magnetic field is described. 48. Homogeneous magnetic field is necessary in NMR magnet. In general shimming magnetic field is by experience. So it's difficult to shim . It depends on experiences frequently. 49. This paper analyzes the formation of the output wave from a dynamic detector, the relation between the output wave and the magnetic field distribution and the effect of the armature reaction on them. 50. The vertical component of terrestrial magnetic field can be got with the vertical current. 51. This paper is dealt with the fluidization of cohesive particles under transverse rotating magnetic field. 52. An example is periodic motion, such as the precession of a particle with intrinsic spin and magnetic moment in a constant magnetic field. 53. When photon acts as the medium of magnetic field, the photon is became a self-trapped spinning coupled magneton, it is called photonic magneton. 54. Brushless, self-rotating magnetic field, H insulation grade level, the level of protection IP22, AVR automatic voltage regulatdevice. 55. At the solar surface, convective motions of heated gases jostle the magnetic field line. 56. A third radiation group was unaffected by the magnetic field. 57. A magnetic field may be represented in the same manner as an electric field. 58. Accordingly ,[http:///magnetic field.html] this simulation method can be used in the real design of cusp magnetic field. 59. The pulse magnetic field sterilization test of colostrum was carried out. 60. The effects of sintering temperature, sintering time, sintering pressure and the magnitude of orientation magnetic field on the properties of the barium ferrite thick films were studied.