The transmission system and its principle of the domestic and overseas stair lift with straight and curve rails are analyzed in this paper.
本文将对国内外直轨和弯轨形式爬楼梯装置的传动系统及其原理进行分析和研究。
Traders like to see the market make moderate, stair-step advances rather than shooting straight higher, which many see as as ign of unsustainable and impulsive buying.
交易商希望看到市场做出温和，楼梯，一步进展，而不是直接射高，其中许多人认为的标志不可持续的和冲动购买。
Traders like to see the market make moderate, stair-step advances rather than shooting straight higher, which many see as as ign of unsustainable and impulsive buying.
交易商希望看到市场做出温和，楼梯，一步进展，而不是直接射高，其中许多人认为的标志不可持续的和冲动购买。
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