氧化剂管的凹陷使稳定性增强。
Without any doubt, Rogers said, the economy of the U. s is recessing now.毫无疑问,罗杰斯说,美国的经济现在衰退。
The effect of the recessing on the strength and stress distribution of adhesively bonded single-lap joints is discussed.研究单搭接接头胶缝中预留间隙对接头拉剪强度和应力分布的影响。