spontaneous generation

1. The great scientific debate in universities at that time was "spontaneous generation" of life.
   那时大学里科学辩论的重大课题是生命的“自发生说”。
2. Two more centuries elapsed before this information was organized and synthesized into an explanation for "spontaneous generation" of life.
   经过两个多世纪之后，这一知识被条理化了，被综合成为对生命“自发生说”的一种解释。
3. Because of spontaneous mutations in germ cells sperm and eggs each generation of our species is subtly different.
   正是因为生殖细胞&精子和卵细胞中的自发突变，我们每一代人之间才会产生微妙的差异。
4. Spontaneous generation of new life.
   新生命的自然发生。
5. METHODS: The homogenate of liver, heart, and kidneys of rats was used to measure malondialdehyde ( MDA) spontaneous generated and induced by hydroxyl free radical generation system ( Fe2+-ascorbic acid, FRGS) or doxorubicin ( DOX) by TBA colorimetric method.
   方法：用TBA比色法测自发性生成或Fe~（2+）-抗坏血酸和多柔比星刺激大鼠心、肝、肾组织匀浆生成的MDA；
6. It is pointed out that the control of the spontaneous combustion of remnant coal and the control of CO generation are usually not synchronous.
   指出控制遗煤自燃和控制CO生成两者一般是非同步的；
7. Amplified Spontaneous Emission Generation of Wavelength Upconversion in a Er ￣( 3+)-doped Silicate Single-mode Optical Fiber Pumped at 1. 313 μ m
   利用1.313μm激光泵浦掺铒石英光纤产生上转换放大自发辐射
8. About 1%-2% larger pollens Citrus grandis were observed in Citrus grandis. These large pollens may be 2n pollens. We confer that spontaneous generation of triploids and tetraploids of Citrus grandis could be caused by 2n pollens.
   连续两年对长寿沙田柚的自然花粉观察发现1%-2%的大花粉粒，这些大花粉粒可能为2n花粉，推测沙田柚天然三倍体与四倍体的发生可能与2n花粉有关。
9. According to the theory of heat-releasing and heat-transferring of coal spontaneous combustion, after the fire-zone is closed under the coal mine, the balance system is destructed for heat generation and elimination in the fire-zone, and the heat quantity is accumulated in closing fire-zone.
   根据煤炭自燃放热和传热理论，当煤矿井下火区封闭后，封闭火区内生热和散热平衡系统遭到破坏，造成封闭火区内发生热量积聚现象。
10. Farley and Geison's case-study in the Pasteur-Pouchet debate over Spontaneous Generation illustrates that the denial of rational explanation is the precondition to sociological explanation.
    法利和盖森关于巴斯德-普歇的自然发生说之争的案例研究表明拒斥理性模式是走向社会学模式的前提；
11. Spontaneous Generation and Utilization of Polyploids in Genus
    柑橘多倍体的自然发生与利用
12. This congenital deficiency is mainly due to the technology of microscope and probably being influenced to a certain extent by the then popular spontaneous generation of life.
    这个缺陷，主要是显微镜技术的问题，但当时普遍流行的生命自然发生论也可能产生了一定的影响。
13. Based on the nonlinear equations, the growth rate and characteristic scale for spontaneous magnetic field are obtained from linear analysis. And the possible application of the mechanism to explain the generation of small scale magnetic field in astrophysical environments is proposed.
    从该方程通过线性分析得到调制不稳定性导致的自生磁场的增长率和特征尺度，并讨论这样一种机制在天体物理方面的应用。
14. Theoretical calculation and analysis based on non-collinear phase matching condition show that it comes from the type-I spontaneous parametric down conversion and its second harmonic generation, having the opposite sequence to the colored conical emission rings.
    基于非共线位相匹配理论计算和分析表明，这是一个由Ⅰ类自发参量下转换和其倍频过程的级联二阶参量过程，和彩虹圆锥角辐射的级联顺序正好相反。
15. So the spontaneous decay has no merit to the generation of laser and the coherence of atom and light.
    因此对于激光的产生、原子和光场相干性的保持，自发辐射的存在都是不利的。

noun

1. a hypothetical organic phenomenon by which living organisms are created from nonliving matter

   Synonym:    abiogenesisautogenesisautogeny