本文介绍了唐山大地震前在北京通县西集地震台用扭秤观测到的重力位二次微商变化。
In this paper the secondary derivitative change of gravitational potential before Tangshan earthquake observed in Xiji seismic station near Beijing is presented.
使他对建筑产生兴趣的是他15岁时买的一本勒·柯布西耶的速写集。
His first interest in architecture was nourished in tadao's 15 by buying a book of Le Corbusier sketches.
所以说这本新鲜出炉的书信集是一次很好的尝试。其收信人是阿西尔女士一位的密友爱德华•菲尔德，信件的时间跨度则有26年之长。
So it is good to have this new collection of her letters to Edward Field, a close friend, spanning a period of 26 years.
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