论文部分内容阅读
船舶压力推进
【出 处】
:
造船技术
【发表日期】
:
2003年2期
其他文献
Factors Influencing Pregnancy Outcome Following Slow Cooling Cryoembryo Transfer and Risk of Multipl
Objective To investigate the factors that influence the potential for cryoembryo implantation and multiple pregnancy.Methods In this retrospective study,a total
Ureaplasma Urealyticum or Mycoplasma Hominis Infections and Semen Quality of Infertile Men in Abidja
Objective To determine the prevalence of U. urealyticum and M. hominis in semen samples collected from men admitted in clinic for infertility, and to compare th
Objective To explore the 3+1 monitoring mode for birth defects and quality control measures based on the population,and to obtain the related information data f
AOC再推全新力作——MVA广视角新品M2440Ve显示器。在外观设计上M2440Ve显示器秉承了AOC一贯的设计风格.显示器前框和底座上采用了一些半透明材质馓边框.也延续着经典黑色机身
目的:讨论四肢骨肿瘤瘤体切除,功能重建的效果。方法:分析23例四肢骨肿瘤行瘤体切除,不同方法重建后功能状况,其中转移瘤8例,骨巨细胞瘤6例,软骨肉瘤3例,骨肉瘤2例,尤文肉瘤2
均值定理(一正,二定,三相等)rn1.设a,b∈R+,若a+b=S(S为常数),则ab≤S2/4(当且仅当时取等)[和为定值,积有最大值]rn2.设a,b∈R+,,若ab=P(p为常数),则a+b≥2√P(当且仅当时取
聆听,学习和交流rn在利润不断下降的情况下,如何提高生产效率成为印刷厂商生死存亡的关键.说到底就是企业如何实现更快、更灵活和更高生产效率的问题.这就是曼罗兰为什么以“