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下弦 [xià xián]
last quarter
[天] third quarter
[天] third quarter
- 主楼和裙房间采用大跨鱼腹桁架，桁架下弦采用高强度预应力钢棒。
The bottom chord of the truss is used by pre-stress steel bar. - 欧利说，他拨了一下弦，声音好听得简直让我们无法用词语形容。
He gave the strings a strum, and let’s just say that beautiful and music are not the words to describe the noises that came out! - 结果在强天文潮汐期内心脏病患者发生心衰显著多于其余时期，而且在朔、望期发生的人数多于上、下弦期。
Results More heart failures of the heart diseases patients' were observed during strong astronomical tide period, especially in up and down periods.
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中国词汇量第二的英语词典
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