negative step meaning in English

负步
负台阶

100kn pneumatic impulse negative step force calibration system
气动助推式负阶跃力校准装置
A study on the generation of standard negative step force and its measurement
标准负阶跃力的实现及其测研究
At the same time , this paper compare with the characteristic of buildbook . com and the other two famous web stage in nation , it consummate the brand figuring about buildbook . com in positive and negative step by step . after bring forward seven suggestions , this paper gives us a maneuverability circulate mode on how analogy corporations to figure brand in the condition of internet economy
在同亚马逊网站以及国内较有影响的与建筑书店网站经营内容类似的两个网站进行分析对比之后，从正反两个方面逐步完善了建筑书店网站的品牌塑造过程，提出了对建筑书店网站品牌塑造的七大建议，并且在最后一章进行了归纳总结，为今后类似企业在网络经济条件下进行品牌塑造提供了具有可操作性的运行模式。