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。
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。
Therefore, the development of a simple structure, good reliability, easy maintenance, and can achieve a long stroke, large displacement, heavy load of new unit, is still a much-needed study.
因此，研制一种结构简单、可靠性好、维护方便且能实现长冲程、大排量、重负载的新型抽油机，仍然是一个急需研究的课题。
应用推荐