The Japanese routinely purchase more than a third of U.S. Treasury Bills.

日本通常购买三分之一以上的美国短期国债。

One possibility is to issue Treasury bills.

其中一个可能性是发行国库券。

Treasury Bills are issued in three maturities.

短期国库券发行期限有三种。

But these purchases are being financed by the issue of Treasury bills.

但是这些购买行为都是依靠发行短期国债进行筹资的。

securities in bearer form (for example, stocks, bonds, debentures, treasury bills) or

证券无记名形式（例如，股票，债券，国库券）