用透射和扫描电镜观察了蕨状满江红茎尖、成熟叶腔内以及胚的腺毛超微结构。
The ultrastructure of Azolla filiculoides was investigated by means of transmission and scanning electron microscopy .
压水室采用导叶式结构能够尽快地把液体的动能转换为压力能，同时能够使泵腔内的流动更趋合理均匀，提高泵内气液分离的能力，并且能平衡叶轮径向力。
The volute of guide-vane structure can transform the kinetic energy to pressure energy as soon as possible, and improve the capacity of separating gas and liquid for the more balance flow in it.
假设桨叶以高速旋转进入、离开水面，叶背充满空泡，随边后空泡腔延伸到水面。
It is assumed that the blade of the partially submerged ventilated propeler enters and exits from water at high speed.
方法通过DTI - M型模式检测33例健康人心尖四腔观和二腔观二尖瓣环后瓣叶外侧缘的运动。
Methods Mitral annular motion in 33 cases of normal subjects form apical four-chamber view and two-chamber view were detected with DTI-M mode.
目的总结叶支气管腔内癌的CT征象及其临床特点，提高对本病的认识和诊断水平。
Objective to summarize the ct signs and clinic characteristics to improve the ct diagnoses ability on the lobar bronchial intraluminal cancer and provide a well comprehension for it.
弥漫性低密度灶累及大脑各叶15例。其中4例合并蛛网膜下腔出血，2例合并脑室出血。
Diffuse low density region in all cerebral lobe were found in 15 cases, in which subarachnoid hemorrhage was complicated in 4 cases, and ventricular hemorrhage was found in 2 case.
CT均显示叶支气管腔内结节状或栓子状影像 ，以及不同程度的阻塞征象。
The nodules or emboluses within lobaris bronchus were showed by CT in all cases and the obstructive signs on each patient in its degrees.
CT均显示叶支气管腔内结节状或栓子状影像 ，以及不同程度的阻塞征象。
The nodules or emboluses within lobaris bronchus were showed by CT in all cases and the obstructive signs on each patient in its degrees.
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