T-bond

基本解释

The 30-year T-bond stands at 2.82%, and three-month Treasury bills were sold last week for a yield of just 0.05%.
30年期国债收益率为2.82 ％，3个月国库券，上周实际收益率仅为0.05 ％。
The 30-year T-bond, for instance, would drop 25% in price if its yield rose to 4.35%, where it stood as recently as Nov. 13.
例如，30年期国债，如果其收益率上升至4.35 ％，其价格将从11月13日的价格基础上下跌25 ％。
For the T-bond contract, any Treasure bond that has at least 15 years to the nearest call date or to maturity (if non-callable) can be used for delivery.
对于国债期货，任何距最近的赎回日或到期日（假如不可赎回）长达至少15年的国债可用于交割。

You wouldn't buy this bond at par because at par, meaning at $100- because then you wouldn't get any interest on it.
你不是以平价买入,平价买入,意思是以100面值买,否则就没有利息收益了
耶鲁公开课 - 金融市场课程节选

The monthly chart of the 30-year T-Bond goes back to 1995, when the yield peaked at 8.07%.
FORBES: Keep Your Eye on Treasury Rates
The 30-year-plus bond bull market is reflected by this long-term chart of T-Bond yields by year-they have declined from 15.2% to 2.91%!
FORBES: The Week Ahead: Can Diversification Ruin Your Return?
The daily chart of T-bond yields (right panel) shows that they have been in a broad trading range, lines g and i, since last September.
FORBES: Bond Indicator Identifies Market Top