Both countries are signatories to the Nuclear Non-Proliferation Treaty.

两个国家都是《防止核扩散条约》的签约国。

《柯林斯英汉双解大词典》

India has not signed the Nuclear Non-Proliferation Treaty.

印度一直没有签署《核不扩散条约》。

youdao

The Nuclear Non-Proliferation Treaty signed by every single nation.

让每一个国家都签署《核不扩散条约》。

youdao

The cornerstone of this is the Nuclear Non-Proliferation Treaty, which considers only five countries as nuclear-weapons powers.

VOA: standard.2009.09.29

Israel is believed to have a nuclear arsenal, but has not signed the Nuclear Non-Proliferation Treaty and is not subject to international inspections.

VOA: standard.2010.04.11

India has said there is no question of its joining the Nuclear Non-Proliferation Treaty as a nuclear weapon state, saying nuclear weapons are an integral part of its national security.

VOA: standard.2009.09.29

The framework collapsed, and the North Koreans pulled out of the nuclear Non-Proliferation Treaty, and...

NPR: Diplomat Offers Analysis of North Korea Test

The Non-Proliferation Treaty calls on the signatories to move towards dismantling their nuclear weapons.

NPR: Weak Prospects for Nuclear Nonproliferation Efforts

The Nuclear Non-Proliferation Treaty was ratified in 1970 and reaffirmed by its signatories 10 years ago.

NPR: Nuclear Weapons Gain Importance for Regional Powers