查询词典 PCB

Bromophenol has been chosen as the model component in order to explore the details of decomposition of brominated flame retardants in waste PCB during the hydrothermal process.

并且根据基材树脂的分子结构和水热反应产物，初步探讨了线路板基材树脂的水热分解途径。

We should develop cleaning production and change PCB industry from contaminative industry into cleaning industry.

开展清洁生产，就能变成&清洁行业&。

This Letter describes the optimal use of coreless PCB transformers [2] with minimum power requirements.

本文叙述了小功率要求的无铁心印制电路板变压器的最佳使用（详见[2]专利文献）。

For Teflon PCB, pyrolysis gas contained high concentration of octafluoro- cyclobutane and low concentration of small molecular fluorocarbon-hydrogen compounds.

Teflon热解气体产物主要为八氟环丁烷以及其他小分子碳氟氢烷烃化合物。

Followingly, the applications of these analysis technologies are presented in some typical failure cases.

然后结合PCB的典型的失效分析案例，介绍这些分析技术在实际的案例中的应用。

Do you iteratively build prototype PCBs to tune a design?

还在重复建造PCB原型来调整设计吗？

Do you iteratively build prototype PCBs to tune a design?

还在重复建造PCB圆型来调整设计吗？

Solder-paste printing plays an important part in SMT production, and affects the jointing quality of.

焊膏印刷是 SMT 生产中的关键工序，影响 PCB 组装板的焊接质量。

Noncondensible gas(7%～33%,consisting of CO,CO2,H2 and C1-C2 hydrocarbons),liquid(water and oil phases,26%～45%)and solid residues(31%～51%)were collected after microwave heating of waste PCB.

结果显示：微波热解得到的气体、液体、固体的产率分别为7%～33%、26%～45%、31%～51%，其中气体主要由CO、CO2、H2及有机烃类组成，可燃性气体占70%左右，可作为燃料气加以利用；液体分为水相及油相，经常压蒸馏后得到的120～250℃馏分主要为单酚化合物，苯酚高达50%左右，甲基苯酚和邻甲基苯酚为25%以上，是良好的化工原料；固体中除炭外，还含有许多金属如铅、锡和铜等，可以回收利用。

I used an Weller "Pyropen junior" in naked flame mode like this

调谐器终于取下来了，但是也给PCB带来了一点损害

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。