To stability analysis of tethered balloon, a three dimensional nonlinear mathematical model tethered aerostat was assembled. 为研究系留气球稳定性,建立了系留气球的三维非线性动力学模型.
The official led a corrupt life.这个官员过着堕落的生活....corrupt police officers...腐败的警察The black market was flourishing, everybody was corrupt, in it up to their necks...黑市繁荣，每个人都已堕落，深陷其中。Corrupt government officials were extorti...
结果: 在5ppm的富锗培养基上培养的GSC中锗的转化率最高 ( 1118% ).RESULTS: GSC contains the highest ( 11.18 % ) germanium in 5 ppm enriched germanium MS cultrue medium.在不改变原工艺流程的基础上提出了富集锗的相关措施.The authors have proposed some measures related to g...