Seven students and parent volunteers from Sky Valley Education Centre in the state of Washington said polychlorinated biphenyls (PCBs) that were made by the company gave them neurological and endocrine system conditions.

自华盛顿州天空谷教育中心 7 名学生和家长志愿者表示，该公司生产多氯联苯导致他们神经系统和内分泌系统出现问题。

After having spilled PCBs and other pollutants into the river in the 1970s, many industries simply moved leaving the contaminated sites behind.

在上世纪70年代，多氯联苯和其他污染物排入河流后，许多行业搬离了这些受污染地方。

PCBs do their damage by binding to a protein called the aryl hydrocarbon receptor, or AHR, thus stopping it working properly.

PCB危于它们结合一种称为芳香烃受体（AHR）蛋白质，从而停止该类蛋白正常运转。

But PCBs are persistent chemicals, and their effects are felt even today.

但PCBs是惰化工品，即便是今天，它们影响依然存在。

And DDT and PCBs two of the most poisonous and long-lasting substances known continue to threaten aquatic wildlife.

滴滴涕和多氯联苯是已知两种毒和持久最强物质，它们继续威胁水中野生动物。

Two of them seem particularly resistant to the effects of PCBs.

其中两种变异似乎具有特殊抵抗PCB作。

By using PCBs and ICs together, one could achieve exactly the same functional circuit as that made from discrete components, but with far fewer individual components and tangled wires.

通过将PCB和IC结合，可以实现与离散组件制成功能电路完全相同效果，但独立组件和纠缠电线要少得多。

Whether you're prototyping your next project or ready to mass-produce thousands of your finalized devices, PCBWay can quickly manufacture your PCBs with competitive prices and impeccable standards.

无论是为下一个项目制作原型， 还是准备批量生产数千台最终设备，PCBWay都能以有竞争力价格和无与伦比标准快速制造您PCB。

Bioscope was set up as a separate entity by N2S, a sister company that specialises in recycling IT equipment, and which supplies Bioscope with the crushed PCBs.

Bioscope 由 N2S 成立，N2S 是一家专门回收 IT 设备姊妹公司，为 Bioscope 提供压碎 PCB。

So, these are ducts (ph) and PCBs, heavy metals like lead and arsenic that have been in the soil, in sediment at these sites for decades.

因此，这些是管道 (ph) 和多氯联苯，重金属如铅和砷，几十年一直存在于这些地点土壤和沉积物中。

We're talking mercury, dioxin, PCBs, all the greatest hits of 20th century human industrial pollution, and plenty of raw human sewage to top it off.

我们谈论是汞、二恶英、多氯联苯，这些都是 20 世纪人类工业污染最大祸，此外还有大量未经处理人类污水。

44. Question: How do we perform first - article inspection in PCBA? Answer: By thoroughly checking the first batch of produced PCBs for all aspects including component placement, soldering quality, electrical functionality, and mechanical integrity.

44. 问题： 我们如何在 PCBA 中进行首件检验？答案： 通过彻底检查第一批生产 PCB 各个方面，包括元件放置、焊接质量、电气功能和机械完整。

A different sort of pay dirt, however, offers the prospect of a much greater return for urban miners: the printed circuit boards (PCBs) found in rapidly growing mountains of electronic waste.

然而，另一种财富却为城市矿工带了更大回报：在迅速增长电子垃圾山中找到印刷电路板（PCB）。

For this, engineers had another innovation: printed circuit boards, or PCBs.

为此，工程师们又有了一项创新：印刷电路板，或简称PCB。

Question: What is the common material for PCBs in PCBA? Answer: FR - 4 (Flame Retardant 4) is a very common material for PCBs.

8. 问题：PCBA中PCB常材料是什么？答： FR - 4（阻燃 4）是 PCB 中非常常见材料。

Printed circuit boards, or PCBs, are everywhere, and inside this mouse you can find four of them.

印刷电路板，或简称PCB，在这里随处可见，而这只鼠标内部就有四块。

Light switches are pretty humble, but if you want to build complicated circuits, you're going to have to use printed circuit boards or PCBs, which is rather fitting because this video was made possible by our sponsor, PCBWay.

电灯开关虽然很不起眼，但如果你想构建复杂电路，你就得印刷电路板或PCB。这倒是挺合适，因为这段视频是由我们赞助商PCBWay制作。

The Cambridge plant has the capacity to process 1,000 tonnes of PCBs a year, although plans are already being discussed to build a much bigger one.

剑桥工厂每年可加工 1,000 吨 PCB，尽管已经在讨论建造一个更大工厂计划。

60. Question: How can electrostatic discharge (ESD) be minimized during the handling of PCBs in PCBA? Answer: By using anti - static workbenches, wrist straps, and anti - static packaging materials.

60. 问题：在处理 PCBA 中 PCB 时，如何最大限度地减少静电放电 （ESD）？答：通过防静电工作台、腕带和防静电包装材料。

The process is capable of recovering almost all the gold, silver, copper and palladium from the crushed PCBs, although the exact amount depends on the type of circuits being recycled.

该工艺能够从破碎 PCB 中回收几乎所有金、银、铜和钯，但具体数量取决于被回收电路类型。