| 1. | The material must be moderately coherent and firm .
材料必须有适度的粘着力和坚固性。 |
| 2. | Soundness of the rock surface must be included in the topographic study .
岩石表面的坚固性，必须包括在地形研究之内。 |
| 3. | Wood - based panels - surface soundness - test method
木基板材.表面坚固性.试验方法 |
| 4. | Wood - based panels - surface soundness - test method
木基板材.表面坚固性.试验方法 |
| 5. | Lightweight , portable and rugged construction at 12 kg
,便携式和坚固性建筑在 |
| 6. | Sturdiness . 14 - g diamond plate steel , tubular frame
坚固性： 14g菱形钢，管状结构。 |
| 7. | Sturdiness . 6mm diamond - plate steel , 25mm rear - end plate
坚固性： 6毫米菱形钢车身，车体后部25毫米钢板。 |
| 8. | Guide for conducting ruggedness tests
坚固性试验指南 |
| 9. | Sturdiness . 14 - g diamond plate steel body , high strength tubular frame
坚固性： 14g菱形钢车身，高强度管状结构。 |
| 10. | Standard test method for stiffness of nonwoven fabrics using the cantilever test
用悬臂试验对非机织织物坚固性的标准试验方法 |
