自此之后，美国成为世界上最大的氦供应国。

The United States has provided the majority of the world’s supply ever since.

泰国和新加坡是继中国之后缅甸第二和第三大供应国。

Thailand and Singapore are second and third behind China in supplying the country.

民用核技术协议仍然需要国际原子能机构、核供应国集团和美国国会的批准。

The nuclear deal still has to be approved by the International Atomic Energy Agency, the Nuclear Suppliers Group and the U.S. Congress.

这些步骤包括获得国际原子能机构的批准以及核供应国集团的首肯。

These include seeking an approval from the International Atomic Energy Agency and a waiver from the Nuclear Suppliers Group.

牛鞭效应使更多的出口依存度非常危险的供应国，这不仅有助于周期性波动。

The bullwhip effect makes greater export dependence very dangerous to supplier countries, which only contributes to cyclical volatility.