
English: 
So negotiators from Iran and 6 world powers just emerged from months of negotiation
in Austria and Switzerland to announce that, believe it or not, they have an Iran nuclear deal.
"Every path way to a nuclear weapon is cut off."
But what does that actually mean?
How does all that actually work?
Well this gets technical really fast but it helps
if you go through and look at some of the most important issues
One of the big ones is uranium
thats the stuff, you dig it out of the ground and use it for nuclear fuel
for a power plant, or even for a bomb
The deal requires Iran to give up 97% of its enriched uranium
almost all of it, down to just 300kg stockpile--not very much
Uranium comes in different levels of enrichment
and this restriction is really severe, Iran is only allowed

Undetermined: 
伊朗與六國在奧地利及瑞士
談判多月之後
終於宣布達成伊朗核協議
「已斬斷所有發展核武的可能性」
但核協議有何意義？
又能發揮什麼效果？
背後當然包括許多技術層面
但我們還是能歸納出
幾項最重要的議題
其中一大關鍵在於鈾
這項物質出土之後
可做為核燃料
用於發電廠或炸彈
協議要求伊朗放棄
國內97%的濃縮鈾
只留下約300公斤存量
實在不算多
鈾的濃縮程度各有不同
協議內的限制也很嚴格

Undetermined: 
只允許伊朗的鈾濃縮至3.67%
若與其他用途相比
醫療級的鈾濃縮比例為20%
武器級的鈾濃縮比例達90%
而伊朗的濃縮鈾只有3.67%
屬於安全的能源級
絕不可能供核武使用
伊朗也將放棄大多數離心機
這種機器能處理核裂變物質
總數會從兩萬部降至五千部
另外一千部可投入研發
但無法處理核裂變物質
若伊朗有天決定終止核協議
決定再次製造核武
也將需要很多時間
這也牽涉到重要的檢查議題
外界透過檢查及監督機制
確保伊朗並未背棄目標
也避免伊朗撒謊
美國在核協議內訂定的
檢查機制也很驚人

English: 
to have its uranium up to 3.67% enrichment
and to give you a sense of what that really means, medical research grade uranium
is enriched to 20% and weapons grade uranium is enriched to 90%
so, iran's uranium is going to be way down at 3.67%
very safe and energy graded,
not something that is anywhere near what can be used for a nuclear weapon
Iran is going to give up most of its centrifuges.
It's going to go from 20,000 centrifuges to just 5,000
that are spinning fissile material.
Plus another 1,000 that it can use for research and development but can use fissile material
And if Iran decided one day, you know what, we don't like this deal anymore
we're gonna build a bomb...it would take it a really long time to do it.
And that gets to another really important issue, and that's inspections.
Inspections, and monitoring, are how we make sure that Iran is sticking to their end of the deal
and that they're not cheating
The inspections that the US got out of this deal are frankly, just astonishing.

Undetermined: 
一名軍火控制分析師指稱
「若伊朗私下從事幕後活動」
「這套檢查制度幾乎一定會發現」
可見制度多麼完備
接受這些條件後
對伊朗又有何好處？
伊朗能夠擺脫
長期阻礙經濟的制裁措施
過去制裁阻斷
伊朗經濟與外界往來
禁止國際金融往來運作
都重挫了伊朗經濟
因此伊朗很希望終結制裁
除了伊朗政府受影響
對伊朗7700萬居民也很重要
許多中產階級過去
長期受經濟制裁所苦
也希望很快能夠恢復經濟運作

English: 
One arms control analyst said he thought there was
"almost a 100% chance that if Iran cheated it would be caught by these inspections"
That's how good they are.
So what does Iran get for accepting all of this?
What Iran gets is relief from the economic sanctions that have been just crippling its economy
What these sanctions do is they cut off Iran's economy from the outside world,
They cut it off from international banking, international finance,
and these have been just devastating Iran's economy
and they are really desperate to get out from under these.
This is a big deal, not just for Iran the state but for the 77 million people of in Iran
It's a big middle class and they've been suffering under economic sanctions for too long
And they will finally get to have the chance of having a real economy hopefully very soon after this.
