胚珠是半球形的，有2个被膜，腱鞘状，而原孢子细胞直接作为大孢子母细胞起作用。
The ovules are hemitropous, with 2 integuments, tenuinucellate and the archesporial cell functions directly as the mega-spore mother cell.
可以使用PRD球形和半球形的管道终端。
With PRD PEEM's both spherical and semi-spherical pipe ends are possible.
大致呈半球形的破坏区域，大小依核弹的当量、引爆深度和土壤质地而定。
The size of the roughly hemispherical destruction zone that results depends on the yield of the weapon, the detonation depth and the composition of the ground.
每天半球形的玻璃摄像头越来越多，远郊居民防守大门的心理也有扩散到城里的趋势。
Every day the glass-domed cameras proliferate, and the gateguarded mentality of the deep suburbs threatens to invade our cities.
本文介绍了半球形的背投式视野仪的硬件平台及选用的检查策略，设计了软件结构，划分了软件模块。
This paper describes the hardware platform of auto visual field analyzer and the selected strategies, designs the whole software structure, and classifies modules according to the functions.
爬过几次后，只要爬到半球形蓄水池顶，我的恐惧似乎就在午夜温暖的空气中蒸发了——原来，只是我久不练习而已。
After a few more climbs, once to the top of the domed reservoir, my fear seemed to evaporate in the warm midnight air—I had simply been out of practice.
爬过几次后，只要爬到半球形蓄水池顶(孩子们，别在家做这样的尝试)，我的恐惧似乎就在午夜温暖的空气中蒸发了——原来，只是久不练习而已。
But then, after a few more climbs, once to the top of the domed reservoir (kids, don't try this at home), my fear seemed to evaporate in the warm midnight air-i had simply been out of practice.
定音鼓，或者有时称作半球形铜鼓，它正演奏两个不同的音高，实际上在演奏这个音高和另外一个音高，八度音阶和这个五度。
Timpani or as it's sometimes called a kettledrum, and it was playing two different pitches, actually sort of playing this pitch and this pitch, the octave and then the fifth.
大量的二氧化硫进入大气中形成酸雨，扰乱局地气候，在北半球形成了一个雾气笼罩的区域。
Huge amounts of sulfur dioxide added to the atmosphere created acid rain, disrupted regional climate and left a lingering fog shrouding parts of the Northern Hemisphere.
在用半球形凸模进行试验时发现，所用凸模直径和试件形状的不同对FLD有影响。
An experiment with hemispheric punches reveals that the difference in their diameters and the specimen shape has some influence on FLD.
定音鼓一种大的半球形红铜或黄铜鼓，面为羊皮纸，能通过调整拉力调音。
A large copper or brass hemispherical drum with a parchment head that can be tuned by adjusting the tension.
在空心半球形建筑中心，一个包含音乐厅、黑盒剧场、音乐排练室和图书馆四个矩形单元的复杂实体置于其中。
Located at the center of a semi-spherical void, a complex solid object contains four rectangular voids: the concert hall, black-box theater, music rehearsal room, and library.
最常见的气缸盖类型是半球形，楔形和准半球形。
The most common cylinder head types are the hemi, wedge, and semi-hemi.
这些岩石据说是几百万年前的小行星碰撞的结果，并在灶神星的南半球形成了一个跨度为460公里的陨石坑。
These rocks are believed to be the result of an asteroidal prang that happened many millions of years ago and left a crater 460km across, which dominates Vesta's southern hemisphere.
半球形封头壁厚与筒体壁厚不相等的高压容器是由端部密封装置、筒体、半球形封头和加强箍等组成的一种新结构容器。
High pressure vessel with hemispherical head thinner than cylinder wall is a new type of vessel which consists of sealing device, cylinder, hemispherical head and reinforcing ring.
结果表明：寄生真菌的分生孢子座黑色，半球形；
很少有关于椎体外形的观察研究，研究发现有三角形和半球形两种，推测是由于个体差异所致。
The shape of the vertebral body has been seldom looked into, and the findings obtained show a triangular shape and hemispherical shape, supposedly owing to interpersonal variability.
本文介绍了提高硅光探测器量子效率的半球形点阵技术。
In this paper, the hemispherical grating technique, which is effectively used in enhancing quantum efficiency of Si photodetector, is introduced.
结论：大多数的病例，椎弓根上半部的椎体外形为半球形，下半部为三角形。
Conclusion. In most cases, the vertebral body shape is hemispherical in the upper part of the pedicle and triangular in the lower part of the pedicle.
目的比较半球形巩膜瓣和花瓣样巩膜瓣羟基磷灰石(HA)眼座一期植入的手术效果。
Objective Comparison the surgery effect of ha implantation at period I in half ball scleral flap and petal like scleral flap.
美洲大西洋海岸的大型海生节肢动物，有半球形马蹄状甲壳和硬而尖的尾巴；与林虱有关的一个活化石。
Large Marine arthropod of the American Atlantic coast having a domed horseshoe-shaped carapace and stiff pointed tail; a living fossil related to the wood louse.
应用高数值孔径系统的矢量衍射理论研究了半球形固体浸没透镜(SIL)球面表面的反射对SIL系统透射场的影响。
The reflection effect of the spherical surface of a hemisphere solid immersion lens (SIL) has been investigated using the vectorial diffraction theory for high numerical aperture systems.
本文基于半球形流的特点，利用质量守恒原理，通过推导得到了由拟压力、压力平方和压力一次方表示的产量公式。
Based on the mass conservation principle, the production formula of semi-spherical flow for pseudo-pressure, pressure-squared and pressure are derived in this paper.
这个球作为扩散光源，使测量的半球形或定向吸收率的反射系数，分别使用。
This sphere serves as a diffuse light source, which enables measurements of the hemispherical reflectance, or the directional absorptance, respectively.
用网格法测量了半球形冲头胀形时的应力分布，并将有限元计算结果与实验结果进行了对比，验证了有限元分析结果的可靠性。
To verify the reliability of FEM results, the stress distribution of deformation is measured with mesh method, and the analysis results are compared with the experimental results.
他的前额呈弯曲的半球形。
本文论述沈阳老站圆形候车大厅保护性改造工程中，采用扣件钢管框架支撑半球形穹盖进行更换钢筋混凝土柱及基础的施工。
In its construction, engineers adopted fastener steel pipe frames to support the semi-spherical dome in order to replace reinforcement concrete and foundation of the station.
本文论述沈阳老站圆形候车大厅保护性改造工程中，采用扣件钢管框架支撑半球形穹盖进行更换钢筋混凝土柱及基础的施工。
In its construction, engineers adopted fastener steel pipe frames to support the semi-spherical dome in order to replace reinforcement concrete and foundation of the station.
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