您要查找的是不是：
- level of free convection 自由对流高度
- level of free convection (LFC) 自由对流高度
- To consider the effects of free convection heat transfer in liquid zone and mushy zone, an Effective Heat Transfer Coefficient keff is defined. 论文通过引入有效导热系数keff，考虑了液相区、两相区的自然对流对传热的影响。
- Li, G C., and Yang, S. A., 2006, "Thermodynamic Analysis of Free Convection Film Condensation on an Elliptical Cylinder", J. of the Chinese Institute Engineers. 陈柏璁、吴家瑞、杨胜安，2006，“水平圆管上强制对流膜状凝结之熵增分析”，第二十三届机械工程研讨会。
- Boundary layer theorem, isothermal and isoflux vertical plates, asymmetric isoflux vertical parallel plates of free convection, optimum and maximum channel space will be discussed. 边界层理论，等温、等热流垂直板，等热流非对称之垂直两平行板自由对流以及最佳及最大气渠板距将被讨论。
- The life cycle of flowering plants may now be bridged at the level of free vegetative cells. 现在显花植物的“生活史”可以在游离营养细胞的水平上连结起来。
- Amylin can inhibit insulin releasing, increase the plasma level of free fat acid(FFA). 胰淀素能抑制胰岛素的释放,提高血浆游离脂肪酸的水平。
- The politician cops out on the issue of free trade. 那政客对自由贸易的问题只是一味逃避。
- The rising level of crime is a sign of the times. 犯罪率增高是这一时代的特徵。
- They are advocates of free trade. 他们是自由贸易的倡导者。
- The level of inflation has gone beyond 8%. 通货膨胀率已经超过了8%。
- The level of formality determine the precise mode of expression. 不同的礼节程度决定所需的确切表达方式。
- Our effort is gear to a higher level of production. 我们调整力量将生产推向更高的水平。
- An obstacle to or a censoring of free speech. 言论限制对言论自由的审查或言论自由的障碍
- The flood rose to a level of 50 feet. 洪水涨到五十英尺高。
- The free type phenacetin metabolites in plasma was higher in DEN group than in normal control group by 43.9%(P<0.01), while the total level of free type plus combined type metabolites changed little. DEN组大鼠血浆非那西丁游离型代谢产物含量高于正常对照组43.;9%25（P<0
- One of our cherished privileges is the right of free speech. 我们所珍视的权利之一是言论自由。
- The talks are aimed at radical reductions in the level of weapons. 那些会谈都以大幅度裁减军备为目标。
- There are two modes of convection: free convection and forced convection. 热对流的花样最多，且和流力有密切关系。
- An abnormally low level of glucose in the blood. 低血糖症血液中葡萄糖不正常地低含量
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
