The study of heavy load pavement structure is mainly in view of heavy traffic.
重载路面结构研究主要是针对重载交通而言的。
In these days, college students with great pressure of study and employment produce conflict in mind and heavy load in spirit or in bad mood, result in the symptom of depressed.
当今大学生学习就业压力大，产生不应有的思想矛盾，精神负担过重或情绪处于不愉快状态，导致神经衰弱症。
A study on ti worm gearing is significant in theory and valuable in practice for developing a kind of worm reducer with high efficiency and heavy load capacity.
开展TI蜗杆传动的研究对开发研制高效、重载蜗杆减速机具有重要的理论意义和实用价值。
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