bottom profile meaning in English
水下地形
Examples
- Sinusoidal profile and triangular profile are chosen as the bottom profile , and the undulated profile varies periodically . newtonian fluid and non - newtonian fluid are considered in each flow model
选取两种波形底板模型:一种为正弦板基面;另一种为三角板基面,其轮廓曲线分别为周期变化的正弦和三角形曲线。 - Benthic foraminifer fauna , ams14c dating and acoustic sub - bottom profile was analyzed in the core ey02 - 2 and ey02 - 1 drilled from the muddy deposit in the middle southern yellow sea and the mid - shelf of north east china sea . considering the results of core qc2 ? dz4 and the standard oxygen isotope curves , we discussed the late - quaterenary paleo - environment evolution , benthic foraminifer fauna , paleo - climate , the climate events and water mass in postglacial period , average sedimentation rates , paleo - water depth , origin of sediments , average sea level rise rate in the shelf of south yellow sea and east china sea . at last we discussed the condition of sea level rise in the east china , green house effect and the protection of coastal zone
本文根据南黄海中部泥质区和东海中陆架的两个钻孔岩芯的古生物、 ams ~ ( 14 ) c测年、浅地层剖面等，参考qc _ 2 、 dz _ 4成果及标准氧同位素曲线探讨了黄东海陆架晚第四纪古环境演化、底栖动物群特征、古气候、冰后期以来气候事件、古水团、沉积速率、古水深、沉积物源、海平面平均上升率，讨论目前中国东部海平面上升的状况、温室效应及海岸带保护。 - For both newtonian flow and non - newtonian flow , the vortices are generated when the waviness of the bottom profile is beyond a critical number . by increasing the waviness , a second vortex can be generated . with the increasing of reynolds number , the symmetry of the streamlines at re = 0 is destroyed and the vortices are sloped and become larger
当波形板的波动度超出临界值,波形板壁面上的流动出现流线分离,流动中有涡生成;增大波动度,流动中出现第二个涡; re = 0 ,流线在流场中对称分布;雷诺数增大,流线驻点在水平方向出现位置偏移,涡的范围增大;对于非牛顿流体,随着剪切变稀指数的减小,涡的作用范围减小。