semicentennial

adj.

每五十年的，半个世纪的；

n.

五十周年；

1. The celebration of our company's semicentennial will be held on December.
   我们公司的五十周年庆将于十二月十日举行。

Semicentennial
American Mathematical Society semicentennial publications. Vol. I.
A Semicentennial Research on Biomedical Mechanisms of Acupuncture in China:Fundamental,Property and Advantage
The birth of intracardiac surgery: a semicentennial tribute (June 10, 1948-1998)
An almost semicentennial formula for a simple approximation of the natural frequencies of Bernoulli–Euler beams
Semicentennial tribute to the ingenious neurobiologist Christfried Jakob (1866-1956). 2. Publications from the second Argentina peri...
Emil Fischer's discovery of the configuration of glucose. A semicentennial retrospect
Semicentennial tribute to the ingenious neurobiologist Christfried Jakob (1866-1956). 1. Works from Germany and the first Argentina ...
Fifty years of freedom: The memory of emancipation at the civil war semicentennial, 1911–15
In memory of Professor Amadeus William Grabau (1870–1946) on the semicentennial of his death