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1·Surface durability: The concept of durability is an important one for all backcountry travelers to understand.

地表的耐久力：耐久力是需要所有野外旅行者懂得的一个重要概念。

2·Further study of the calculation basis of curvature coefficient for calculating the surface durability stress are made.

对齿轮齿面接触应力计算中曲率系数的计算依据作了进一步的研究。

3·The definition formulas and new calculation formulas for transverse load factors of tooth strength and surface durability are proposed.

分别提出了弯曲与接触强度端面载荷系数的定义式和新的计算式。

4·Surface Durability: The concept of durability is an important one for all backcountry travelers to understand. The following natural surfaces respond differently to backcountry travel.

地表的耐久力：耐久力是需要所有野外旅行者懂得的一个重要概念。以下的自然地表对野外行进有不同的反应。

5·Synchronous chip seal layer has many advantages, such as high strength, surface, non-slip, waterproof, durability, preventing driving rain and so on.

同步碎石封层具有强度高、表面粗糙、防滑、不透水、耐久性好、防止雨天行车水雾等优点。

6·New environment-friendly water-based varnish: excluding ketones, volatile organic compounds were very low; durability and good abrasion resistance, surface hardness of up to 2H.

新型环保水性清漆： 不含酮，有机挥发物含量极低；耐久性和抗磨损性好，表面硬度可达2H。

7·The clothes play an essential role as the second skin of human body, its surface fabric's comfortableness and durability influence homework personnel's working efficiency and healthy directly.

服装作为人体第二皮肤起着至关重要的作用，其面料的舒适性与耐用性直接影响作业人员的工作效率及身体健康。

8·PU sub-coating substrate; good durability, good surface flexibility, used for inkjet printing film.

聚氨酯涂层；耐候性好，表面柔性较好，用于生产喷墨打印片等。

9·Galvanized substrate and silicone surface is used and after twice painting and twice baking its durability becomes well.

彩色钢板是以镀锌为基板又用硅酮作为表面，经两涂两烘加工而成，耐久性也较好。

10·The surface cracking width obviously affects the appearance of the reinforced concrete structure and the durability of construction.

混凝土表面裂缝宽度不仅影响结构物的观瞻，而且影响结构的耐久性。