结构单元

The basic unit of quantum electromagnetic field is obviously a kind of matter in structural realism, therefore, the basic unit (electromagnetic element-wave) of classical electromagnetic field should be certainly a kind of matter, too.

摘 要：在结构实在论中，量子电磁场的基本单元——&光子&显然是一种物质。

With twodimensional fluid model, the effects of the cell structure parameters on the firing voltage of surface-discharge PDP are studied.

应用两维流体模型研究了表面放电型AC-PDP单元结构参量对PDP着火电压的影响。

This thesis describes particularly the hardware design of the TIU and program design of FPGA, such as the function, structure and implement of ingredients.

文中介绍了这个时间间隔测量单元的硬件设计和FPGA内部的程序设计，特别对各个组成模块的功能、结构和实现方法作了详细描述。

The finite nets in region D has to be divided automatically by computer so as to satisfy the multi changes of tire design and to record rightly a large amount of information of the units.

区域D上的有限元网格的划分，必须采用计算机自动剖分的方式，以便适应轮胎结构设计中方案的多变以及大量单元信息的正确记录。

The second-order Godunov method based on adaptive unstructured grids is applied to solve two-dimensional Euler equations. Methods for the calculation of numerical conservative fluxes passing through the triangle edge are given.

2建立了基于非结构网格的高阶Godunov格式，给出了一种确定通过三角形网格单元边界通量函数的方法，并对单调约束条件进行了改进。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎