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fission造句
31. In the paper, large deformation of symmetry fission has been described by a biquadratic surface revolution instead of several quadratic equations. 32. The latter property of nuclear fission has a significant implication. 33. Fission begins with division of the nucleus by mitosis, followed by cytoplasmic division, and sometimes sporulation . 34. Principal Fission is defined as the reality of society based on computing network, which exists while the virtual society is, symbolized. 35. Or it can have a collision that can create a fission neutron which then is tracked as well as the start of a fission which may be in a quite different place. 36. The characteristics of the different fuel cycle options are analyzed from the view point of sustainable development of nuclear fission energy. 37. The precision of this method depends mainly on the counts of the fossil fission tracks and the error of the thermal neutron fluence. 38. The inherent factors that decide its multiplication are the features as fission , function inconstancy and rarity. 39. This year the focus has been fission karma and how it causes everything to break apart. 40. Using uranium fission chambers of minitype slab in the case of 14 MeV neutrons penetrating through the special experiment model, the pure 238U absolute fission rates are measured. 41. The teacher explained the principles of nuclear fission to the class. 42. In some countries that secrecy stemmed from the military uses nuclear fission. 43. Uranium 235 -- the fuel inside a nuclear reactor -- undergoes nuclear fission. 44. The world at large was less well prepared for the exploitation of nuclear fission. 45. So you have neutrons actually getting into the thermal energy range and then these neutrons become absorbed, not capable of producing fission. 46. When you split a uranium 235 atom you will create what we call fission fragments. 47. As a result, there is less attenuation of the gamma rays from the fission products. 48. The fission track analysis method was used for the age determination of tektite. 49. So the impact of fuel assemblies burn-up on core fission neutron source parameters shall be considered in the neutron transportation calculation. 50. This paper summarized the research present situation of nuclear chemistry, mainly expounded the nuclear chemical reaction principle, including nuclear decay,[http:///fission.html] nuclear fission and nuclear fusion. 51. It was found that the neutron scattering influence on the fission neutron spectrum is rather essential and can noticeably change the shape of the fission neutron spectra. 52. The heterogeneity of the rurality and urbanity is clear-cutly presented in the great fission of knowledge status between the rural and the urban due to the reformation of educational system. 53. The extraction behaviors of actinides and the main fission products by the above compounds were studied. 54. For the neutron transportation calculation, accurate fission neutron source is the prerequisite and fundament ensuring that the calculation results are reliable. 55. Weapon-grade plutonium constitutes the primary fission material for India's nuclear weapon and it has plutonium enough to make 70 to 100 nuclear weapons. 56. The study of the influence of neutron scattering by the surrounding medium and fragment detector on fission neutron spectrum measurement with time-of-flight (TOP) method has been carried out. 57. A neutron striking a uranium 235 atom, releasing some gammas and some neutrons, creating two fission fragments which themselves have a distribution of occurrence. 58. Energy is released by a nuclear reaction from either fission or a fusion. 59. Cosmic ray spallation is a form of naturally occurring nuclear fission and nucleosynthesis. It refers to the formation of elements from the impact of cosmic rays on an object. 60. The transmission factor describes the gradual opening of a fission channel as the energy approaches the fission barrier.