The equivalence principle and moment method are used to derive the expression of equivalent magnetic current in the main cavity excited by the plane wave in the half-space.
利用等效原理和矩量法导出了由半空间中平面波在主谐振腔中激励的等效磁流的表达式；
The box type structure, cavity cannot antirust paint corrosion, in order to prevent moisture intrusion corrosion beam cavity, sealing the inner cavity of the main girder must keep.
箱型结构的主梁，内腔无法涂漆防锈蚀，为了防止水汽侵入腐蚀主梁内腔，必须保住主梁内腔的密封性。
Solitary worker ants spread out, looking for two main features: a small entrance and a dark cavity.
喜欢独处的工蚁四下里去寻找蚂蚁窝两个主要特征：小出口和黑空穴。
The main factors influencing the gas preservation condition includes the fault amplitude, fault fragmented intervals, fault surface dip, and the position of fracture cavity system in the faulted zone.
大断裂影响缝洞系统保存条件的主要因素包括：大断裂断距、断层上消失层位、断面倾角、盖层厚度以及缝洞系统所处断裂带位置等。
The purpose of this is to feed the molten metal to the mold cavity as the molten metal solidifies and shrinks, and thereby prevents voids in the main casting.
其目的是当熔化金属凝固和收缩时往型腔里补充熔化金属，从而防止在主铸件中产生孔隙。
Backwater is a main influential factor of the effective cavity length, almost a decisive one sometimes.
空腔回水是制约有效空腔长度的一个主要因素，有时甚至是决定性因素。
Not only the fractures can connect the separated cavity to grow the effective reservoir space and improve the permeability of matrix, but also is the main path of petroleum migration.
裂缝不仅可以使孤立的孔洞得以连通，发育成有效的储集空间，大大提高基质渗透率，更是油气的主要运移通道。
Result: Representation of punctate, sphere, cavity and destruction were seen in the parotids involvement by MR, so did few normal main duct and intraglandular ducts.
结果：在舍格伦综合征患者磁共振成像中可看到点状、球状、腔状及破坏性表现，少数有正常的主导管和分支导管表现；
The influence of duty ratios on the interference patterns in the far field is studied. Main factors that affect the cavity loss are analyzed.
研究了光束占空比对远场光斑的影响，分析了影响腔内损耗的主要因素。
The main deformity of the center housing cast in the automobile turbocharger is shrinkage cavity.
在汽车涡轮增压器中心架铸件生产中主要产生缩孔缺陷。
CONCLUSION The main cause of uninflammatory rhinogenic headache was abnormal nasal cavity structures. Topical pain was its chief clinical manifestation. It can be cured by nasal endoscopic surgery.
结论非炎症性鼻源性头痛系鼻腔解剖结构异常所致，以局部疼痛为主要症状，针对解剖结构异常的鼻内镜手术可以达到良好的治疗效果。
The system includes the following parts: main module, analysis module, product modelling, database files, part library, cavity design and NC machining.
它包括主控模块、分析计算、产品造型、数据文件、零件库、型腔设计、数控加工等几部分。
The main features of the meter are as follows: The cylinder TE011 cavity with high Q is used as the sensor of the thickness. It transforms the thickness into resonant frequency shift.
测厚仪的主要特点是：用圆柱TE_（011）模谐振腔作为厚度的传感器，它将厚度参量转换为谐振频偏值；
The main reservoir space style are macroscopic cracking, solution cavity, corroded hollow and inter-crystalline suture. The macroscopic suture is the passage of reservoir space.
主要储集空间类型为宏观裂缝、溶洞、溶孔及晶间孔缝，宏观孔缝是连接储集空间的通道；
The main functional elements of the die and mold include the core and cavity, which impart the desired geometry to the incoming melt.
冲模和铸型的主要功能元件包含型芯和型腔，以便对引入的熔融液给予所要求的几何形状。
The main reason is the complicated anatomic structure of the nasal cavity and the special physiological location of the olfactory region, which has caused much trouble in direct experiment studies.
这主要是由于鼻腔的复杂结构及嗅区的特殊生理位置，为直接的嗅觉实验研究带来了不少困难。
MAIN CAUSE: metal is frozen before the cavity is filled or by insufficient metal being ladled.
主要原因：金属液在填充型腔前凝固或木勺舀取料不足。
Shrinkage cavity predication is main purpose of casting simulation.
预测缩孔缺陷产生是铸件凝固模拟的主要目的。
The main work of this thesis is simulation of the thermal characteristic and cold-test characteristic for coupled-cavity TWT slow-wave structure with ANSYS, which is a finite-element software.
本文的主要工作就是利用大型通用有限元计算软件ANSYS模拟耦合腔行波管慢波结构的热特性和冷测特性并对该软件进行了二次开发。
For many years, the design of abutment is just small parts that connected to the fixture and extend in to the oral cavity. The main purpose of it is to support the crown.
多年来，对于桥台设计的要求就只是连接口腔内外的设备，它的主要目的就是支持牙冠。
The main task of this paper is to develop prediction & analysis system of shrinkage cavity and porosity defect in a casting for foundry engineering application.
本论文以有限元分析软件为开发平台，运用设计参数化和功能模块化技术，初步开发了面向铸造工程应用的铸件缩孔缩松预测及缺陷分析系统。
A gas inlet of a spray purifying column is communicated with the main kiln inner cavity, and a gas outlet thereof is communicated with a chimney.
喷雾净化塔的进气口与主窑内腔连通，其出气口与烟囱连通。
A surface treating head in the form of a floor tool (10) for a vacuum cleaner comprises a main body (12), a suction cavity (20) and an outlet (34).
用于真空吸尘器的地面工具(10)形式的表面处理头包括主体(12)、吸入室(20)以及出口(34)。
A proper number of side pressing oil cylinders are arranged on a main slide block, and the upper cavity oil ports of the side pressing oil cylinders are connected in parallel.
在主滑块上，设置适当数量的压边油缸，将压边油缸的上腔油口并联。
A proper number of side pressing oil cylinders are arranged on a main slide block, and the upper cavity oil ports of the side pressing oil cylinders are connected in parallel.
在主滑块上，设置适当数量的压边油缸，将压边油缸的上腔油口并联。
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