The technology that Alan has developed for the big cats

艾伦开发出来用在这些大型猫科动物身上的

is an advanced GPS tracker.

是一种先进的GPS追踪器

It tracks the animal's position, speed

它追踪动物的位置 速度

and how fast they're accelerating, step by step.

以及他们每一步的加速度

The collar has got solar panels on the top,

这个项圈顶部有太阳能电池板

it's got electronics in the top here

这里面有电子元件

and then the batteries on the bottom, and a radio antenna.

底部有电池和一个无线电天线

So this will give us the position of our animals

它将以每秒三百次的速度

to tens of centimetres, 300 times a second,

和几十厘米的精度告诉我们猫猫的位置

and how fast they're going,

以及他们行动的速度

so we actually get exquisitely fine detail

所以我们能够详细地了解

about what they're doing, where they're moving,

他们在做什么 他们在哪儿活动

what terrain they're moving in, how they're hunting,

他们要去什么地方 他们怎样捕猎

when they're successful and when they aren't.

他们什么时候成功什么时候失败

It really is opening up whole new measurements

这是用传统的追踪项圈

that weren't possible before with traditional tracking collars.

根本无法得到的测量数据

The information he's gathered has transformed our understanding

他收集的信息改变了我们对这些

about how these fearsome predators live in the wild.

可怕的捕食者如何在野外生存的看法

We're going to turn on the GPS loggers.

我们要把这些GPS接收器打开

重点解释：

1.step by step 逐步地

例句：He will be promoted step by step.

他将被逐步提升。

2.move in 搬进；迁入

例句：We can't move in until the electricity has been laid on.

我们得等电源接通后才能搬进去。

3.open up 打开

例句：After a few drinks he began to open up a bit.

他喝了几杯酒话就多起来了。