When the lid of the nest box on an ant colony is raised, a whiff of dead cockroach wafts by.
当蚁群的巢箱盖子被揭开时,一股死蟑螂的气息扑面而来。
Some methods raised in this paper which is reduced the weight of gear, shaft, box and clutch for HURTH gearbox, are offered effectively ways for small-scale design of the gearbox.
文中提出了减轻汉斯齿轮箱的齿轮、轴、箱体和离合器重量的一些方法,为齿轮箱的小型化设计提供了有效途径。
The cause of concrete crack in the construction of box girder of passenger dedicated railway line is introduced, and the relevant control measures are raised.
介绍了铁路客运专线箱梁的施工过程中,箱梁混凝土裂缝的成因,提出了相应的控制措施。
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