金正恩可能在新年贺词中宣布完成核武计划

At the start of 2017, Kim Jong Un announced that North Korea had entered “the finAl stage of preparation” to test launch an intercontinental ballistic missile.

2017年初，金正恩(Kim Jong Un)宣布，朝鲜试射一枚洲际弹道导弹的准备工作已进入了“最后阶段”。

The supreme leader, pictured, kept his word and, three such tests later, he declared last month that North Korea had “finally realised” its dream of being a state nuclear force.

这位最高领导人兑现了自己的诺言，朝鲜随后进行了3次洲际弹道导弹试射，金正恩在上月宣布，朝鲜“终于实现了”国家核武梦。

Observers expect him to announce in his new year’s address that he has completed the nuclear weapons programme that underpins his leadership.

观察人士们预计他将在新年演讲中宣布，他完成了支撑其领导地位的核武计划。

Although Pyongyang has launched its longest range missile and conducted its sixth nuclear test this year — a possible hydrogen bomb — Washington is not so sure. US military planners assume North Korea can land a missile on American soil but intelligence assessments vary.

尽管平壤已经发射了其最远射程的导弹，并于今年进行了第六次核试验（可能是氢弹），但华盛顿并不确定。美国的军事计划人士认为，朝鲜可以将导弹发射到美国领土，但情报评估说法不一。

Jim Mattis, defence secretary, says North Korea is still “not yet” a capable threat to the US.

美国国防部长吉姆?马蒂斯(Jim Mattis)表示，朝鲜“还不能”对美国造成切实威胁。

This is what we know about how much North Korea’s nuclear programme has achieved, whether its missiles can reach the US, and what it still has to master:

关于朝鲜核计划取得的进展、它的导弹能否打到美国，以及它还需要掌握的技术，以下就是我们所知道的：

Is North Korea a nuclear power?

朝鲜是核武国家吗？

Yes. North Korea has produced plutonium and enriched uranium and has conducted six nuclear tests . Siegfried Hecker, a US scientist who has made seven visits to North Korean nuclear facilities, where he was once handed a hot jar of plutonium as proud proof, estimates the regime has 25-30 nuclear weapons, each one potent enough to destroy a city. A leaked intelligence report puts the number closer to 60.

是的。朝鲜已生产出了钚和浓缩铀，并进行了六次核试验。美国科学家西格弗里德?赫克(Siegfried Hecker)曾7次访问朝鲜核设施，有一次朝鲜自豪地拿给他一罐钚作为其拥有核能力的证据。赫克估计朝鲜政权拥有25至30枚核武器，每一枚核武器都足以摧毁一座城市。一份泄露的情报报告认为朝鲜的核武器接近60枚。

Has Pyongyang developed a hydrogen bomb?

平壤研发出氢弹了吗？

It is not clear. US officials say North Korea may have detonated its first hydrogen bomb in September. This two-stage fusion explosion relies on plutonium or uranium fission as a trigger, delivering far greater explosive impact up to 1,000 times the strength of the atomic bomb dropped on Nagasaki in 1945.

目前尚不清楚。美国官员表示，朝鲜在今年9月可能引爆了第一枚氢弹。这种两级聚变爆炸依靠钚或铀的裂变来触发，其爆炸当量要大得多，可达到1945年美国在长崎投下的原子弹当量的1000倍。

Experts were struck by the much larger seismic impact of September’s underground explosion, with some saying it was akin to four Nagasakis.

9月份地下爆炸引起的较大震级的地震让专家们感到震惊，有些人认为它类似于4颗长崎原子弹的威力。