The main seismic performance is introduced, including low level period, top displacement, maximum layer displacement Angle, frame bearing horizontal shear, frame bearing earthquake overthrow moment.

抗震性能包括对结构低阶自振周期、顶点位移、最大层间位移角、框架承担承担水平地震剪力、框架承担地震倾覆力矩比几个方面。

youdao

And I haven't offered it in quite a while now, so I doubt you ever studied that period on the college level.

我已经很久没教过这门课了，所以我怀疑你在大学阶段可能没有学过关于那个时期的内容。

youdao

Changes in climate before the Cretaceous period caused severe fluctuation in sea level, resulting in the extinction of the dinosaurs.

白垩纪以前的气候变化导致了海平面的剧烈波动，引发了恐龙的灭绝。

youdao

If hothead theory is correct, there should have been a detectable jump in sea level during that period, but there was none.

FORBES: Global Warming: Hotheads, Flatliners and Lukewarmers, Part One

The U.S. Labor Department reported Thursday the number of first-time claims filed in the week ending Sept. 27 rose by 1, 000, to 497, 000, the highest level since the period shortly after the Sept. 11, 2001, terrorist attacks.

FORBES: Magazine Article

The 10 year Treasury yield had declined from above 6% to 4.5% during that period, a level not seen since 1967, other than a brief period near the Russian currency crisis in 1998.

FORBES: What To Watch Out For In Treasuries