Corporation environment image refers to the impression on public resulting from its material surroundings and immaterial circumstance, and the appraisement and identification from the public.
企业环境形象是指企业的物质环境和精神环境在社会中留下的印象，以及所受到的评价和认同。
In the same material, dimension and load circumstance, the cut stress of the triangle thread is smallest. Its rupture load is higher than the echelon and rectangle.
在螺纹材料、尺寸、载荷都相同的情况下，三角形螺纹牙所受的剪应力最小，断裂载荷也比梯形螺纹和矩形螺纹高。
Hot dipping is the most economic and efficient technology to protect iron material from corrosion in nature circumstance.
热浸镀技术是防止钢铁材料在自然环境中受腐蚀的最经济有效的防护技术。
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