| 1. | Iso hollow steel bars for machining iso specifications
机械加工用空心钢棒 |
| 2. | Hollow steel propeller
中空钢制螺旋桨 |
| 3. | Hollow steel spoke wheel
空心钢辐轮 |
| 4. | Hollow steel roller
空心钢辊 |
| 5. | As structural compents , square hollow steel sections have favourable properties for resisting compression , bending and torsion
方管作为结构构件，在压、弯、扭方面具有优越的性能。 |
| 6. | Test methods for determining the contribution to the fire resistance of structural members - applied protection to concrete filled hollow steel columns
测定结构薄板耐火性的试验方法.防火用混凝土填充的空心钢柱 |
| 7. | Test methods for determining the contribution to fire resistance of structural members - part 6 : applied protection to concrete filled hollow steel columns ; german version env 13381 - 6 : 2002
测定结构件耐火作用的试验方法.第6部分:混凝土填充空 |
| 8. | The use of cfst structure has become widespread in the past few decades . in practice , firstly hollow steel tubes are fixed commonly , concrete in steel tubes is casted secondly
在多层或高层钢管混凝土结构的实际工程中，一般都是先安装空钢管，在安装施工完若干楼层结构后，再向管内浇灌混凝土。 |
| 9. | The structures made of square hollow steel sections by using the directly welded joints without any reinforcement are fabricated easily and economically , which can be found in many applications all over the world
由方管直接焊接组成的结构，节点构造简单，不需加固件，不仅方便了加工，还降低了造价，故在国内外已被广泛应用到各种工程领域。 |
| 10. | The mechanical properties on one - directional loading of two kinds of mixture ratio rpc materials with or without steel fiber and of hollow steel tubes were studied . three kinds of loading format were analogized and the working mechanism of rpc filled in steel tube short columns
应用优化配比后的活性粉末混凝土，试验研究了掺与不掺钢纤维两种配合比rpc材料单轴抗压性能并与普通高强混凝土相比较，试验还研究了空钢管的力学性能。 |
