查询词典 PCB

This dissertation consists of three parts: First, we introduce AOI technology applied to the PCB inspection and its development, especially on the PCB solder joint inspection technology.

本文的主要分为三个部分：首先，介绍了用于印刷电路板检测的自动光学检测技术及其发展，特别论述了印刷电路板中焊点的检测技术的重要意义。

Hardware inputs and outputs. The card also provides two 5-volt DC regulators for operatingthe SBC and the bar-code reader/keyboard pair.

SBC通过I/O PCB与Gammacell血液辐射仪的其它部分以及外围设备进行通信。I/O PCB为所有的硬件输入和输出部分提供光耦合和电压变换。

I didn't lay out the computer PCB, but I did lay out a PCB for a floppy disk controller that I had designed.

我没有列出的计算机电路板，但我并奠定了印刷电路板的软盘控制器，我已设计。

I didn＊t lay out the computer PCB, but I did lay out a PCB for a floppy disk controller that I had designed.

我不*吨奠定了计算机电路板，但我奠定了印刷电路板的软盘控制器，我已设计。

The parameters Euler's number and region area are chosen as characteristic values to built the fault module identification tree for the sake of auto-identification of several ordinary faults.

PCB光板缺陷检测中，根据PCB光板图像和缺陷的特点，选用了最大熵阈值分割算法对图像进行二值化处理，并以欧拉数和区域面积为特征值，建立缺陷模式识别树，实现常见几种缺陷的自动识别。

Based on the analyze of the structure and interface characteristics of PCB, a high speed hammer mill was employed to achieve metals liberation from waste PCB by the impact stress and shearing force of the crushing rings.

在分析线路板结构和界面特性的基础上，选择高速锤式粉碎机实现线路板的破碎与解离。

To speed up the fault diagnosis of electrical equipment analog PCB circuit, this paper uses the principle of DC fault dictionary and the areafault location method, improves the com- ponent model and circuit description program, thus studies analog PCB automatic fault diagnosis system.

为提高电子装备模拟印制板电路故障诊断的速度，本文使用直流故障字典法原理，运用区域性故障定位方法，改进器件模型和电路描述程序，设计了模拟印制板电路故障自动诊断系统。

As antioxidants, the vitamin E or quercetin (10μg/mL) significantly attenuated the toxic effects of PCBs on the cultured hepatocytes. The above results indicated that vitamin E or quercetin might antagonize the toxic effect of PCBs via antioxidizing effects on in vitro cultured chicken embryo hepatocytes.

结果表明离体培养的鸡胚肝细胞可作为肝损伤的细胞模型，PCB对培养的肝细胞的损伤及抗氧化剂维生素E和槲皮素对它的缓解作用提示， PCB对肝细胞的损伤可能是通过诱导细胞膜发生脂质过氧化而导致细胞的死亡。

The coreless PCB transformer concept has not received much attention,probably because there are misunderstandings: that planar winding with a few turns printed on a PCB is almost like a 'short-circuit' and that magnetic core is an essential component in transformer construction.

无铁心印制电路板变压器的概念没有受到人们很多关注，多半是因为存在误解：（i平面绕组在印制电路板上只能印制几匝，差不多像是&短路线&；在变压器结构中，磁心是根本的元件。

Its efficiency is testified by an application. The fixtureless tester can perform 100% test for PCB's connectivity through the probe movement. It takes a long time to test a PCB with low efficiency.

传统的飞针式在线测试仪必须通过大量的机械运动才能实现印刷电路板连接故障的完全测试，因此完成一块印刷电路板的测试需要较长的时间，检测效率较低。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。