The result is fish that are more or less immune to PCB poisoning.

其结果是此鱼类或多或少PCB生免疫作用。

As is the way of evolution, however, some fish species have developed resistance to PCB poisoning.

然而，某些鱼种已经生PCB抵抗，这就是进化。

It appears to work equally well, whether or not it has PCB passengers on board.

无论结合PCB与否，们照样工作。

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

其两种变异似乎具有特殊抵抗PCB作用。

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

但PCBs是惰性化工品，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性和持久性最强物质，它们继续威胁水野生动物。

So BGA devices some security conscious PCB design and PCB routing can make a big difference.

因此，BGA器件、一些安全意识印刷电路板设计和印刷电路板布线可以起到很大作用。

They also provide PCB  assembly services where they populate and solder the components to the PCB.

们还提供 PCB 组装服务，将组件安装并焊接到 PCB 上。

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

为此，工程师们进行了另一项创新：印刷电路板或 PCB。

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

印刷电路板或 PCB 无处不在，在这款鼠标，您可以找到其四个。

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，多氯联苯和其物排入河流后，许多行业搬离了这些受地方。

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

PCB危害来源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。

You've got the PCB, the casing, the plate, which kind of make up the brains and the body of the keyboard.

你有PCB，外壳，板，它们构成了大脑和键盘主体。

The casing sort of houses all of the components while the PCB is the actual electronic circuit that communicates with your computer.

外壳容纳了所有组件，而 PCB 是与计算机通信实际电子电路。

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，几十年来一直存在于这些地点土壤和沉积物。

Also, take a look at our channel page where we cover other topics such as how touchscreens work, how PCBs work, or how cameras in your smartphone work.

此外， 请查看我们频道页面， 我们在其介绍了其主题，例如触摸屏工作原理、PCB 工作原理或智能手机摄像头工作原理。

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 一起使用，可以实现与分立元件完全相同功能电路，但单个元件和缠绕电线要少得多。

You know traces that are on the outer layers of the PCB you can actually scrape off the solder mask and get at those. but you're gonna have less options.

你知道，在印刷电路板外层上有痕迹，你实际上可以刮掉焊接掩膜，然后拿到这些痕迹。但你会有更少选择。

You don't need to take anything apart at the PCB level but just the key things you want to do is find all the flash storage devices, figure out how you can access them.

你不需要在印刷电路板上拆开任何东西，但你要做关键是找到所有闪存设备，找出如何访问它们。

In the hobby, when we say a kit, we basically mean it's a case, a PCB, and a plate and you then buy your own stabilizers, switches, and key caps and you basically build that keyboard from the ground up.

在业余爱好，当我们说套件时，我们基本上指是它是一个外壳、一个 PCB 和一个板，然后您购买自己稳定器、开关和键帽，然后您基本上从头开始构建键盘。