说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 烂鳍
1)  fin rot
烂鳍
1.
Epizootic investigation was carried out and twenty samples of fin rot disease were collected in turbot(Scophthalmus maximus) farm during the past 21 months along the coast of north China.
通过现场调查和记录备案送检大菱鲆病鱼样品的方法,对我国大菱鲆主要养殖区烂鳍病进行了21个月流行情况调查,共采集到烂鳍病发病样品20个。
2)  fin rot
烂鳍病
3)  fin [英][fɪn]  [美][fɪn]
1.
Hydrodynamic performance analysis of a podded propeller with fins;
附鳍吊舱推进器的水动力性能分析
2.
Since the fin size keeping the longitudinal motion stability of SWATH could not be set directly,starting with the restrictions to the size of span and chord of the real ship fins,the variation range of the fin size in the speed range of 40 knot is presented in this paper,then in the range the fin size satisfying certain motion performance at the different speed further is determined.
针对保持SWATH船纵向运动稳定鳍的结构尺寸难以确定的特点,从实船对鳍的展长和弦长取值的约束条件出发,利用计算机仿真出SWATH船在40kn的航速范围内保持纵向运动稳定的鳍结构尺寸的变化范围,然后,从这一范围内确定出不同航速且具有一定运动性能要求的鳍尺寸变化范围。
3.
And the effect of longitudinal location, size, as well as combination forms of fin on the longitudinal motion of SWATH ship are studied.
并研究了鳍的位置、尺度、组合形式对SWATH船纵向运动性能的影响。
4)  fins [英][fin]  [美][fɪn]
1.
Finally,taking SWATH-6A as an example,the installed position,span and chord of stabilizer fins are optimized.
针对稳定鳍的各参数对SWATH船纵向运动性能具有较大影响的特点,建立了稳定鳍的多目标优化模型,并运用基于Pareto解的多目标遗传算法对其求解。
5)  flipper [英]['flɪpə(r)]  [美]['flɪpɚ]
鳍升降鳍
6)  A ventral fin.
腹鳍;臀鳍
补充资料:长鳍光唇鱼
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条


俗名:  花榄鱼、五杠鲮、火烧鲮。
产地及产期:
    分布于珠江水系。栖息于江河中下层。
介绍:
    体高,侧扁。背、腹缘均隆起。吻较尖,吻长大于眼后头长。口下位。下唇侧瓣间隔颇宽。下颌外露,具锐利角质。须两对。背鳍外缘内凹,硬刺后缘具强锯齿,生殖季节,雄鱼背鳍末根不分支鳍条和第一根分支鳍条均延长呈丝状。