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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。
