step bearing

Dearomatization reaction could afford these alicyclic rings in one step with cheap and readily available aromatic compounds, and the obtained alicyclic rings usually bearing carbon-carbon double bonds provide potential chances for their further functionalization.

通过使用廉价易得的芳香族化合物进行脱芳构化反应，能够一步构建脂肪碳环，且所构建的碳环通常含有双键，为碳环的进一步官能团化提供了条件。

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The grinding burn how to affect the wearing capacity of spindle pivot point and step bearing

磨削烧伤对锭杆锭底摩擦副耐磨性能的影响

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With Step-quenching bright oil DF-S, the martensite step-quenching test for bearing component has been made. The test results show that the oil may significantly reduce the deformation and stress, increase crushing load of the steel ball and service life of the bearing.

采用DF-S油对轴承零件进行马氏体等温淬火试验，证明该淬火油可以显著降低变形和应力，提高钢球的压碎载荷及轴承的使用寿命。附图3幅，表3个。

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Thermal Transient Behavior of Thrust Bearing under Step Applied Load

阶跃载荷扰动条件下推力轴承热瞬态过程研究

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When the load exceeds the ultimate bearing capacity of the piles the distribution curve of load at the top of piles under box foundation varies step by step from paraboloidal to the shape of a pot-bottom.

课题还获得了由容许荷载、极限荷载到破坏荷载全过程的桩顶荷载分配曲线。

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