1.
The fangs of pit vipers are long, hollow tubes.
颊窝毒蛇的毒牙是长的空心管子。
2.
Application of Hollow Ceramic Pipe on the Sprue on EPC
陶瓷空心管在消失模直浇道上的应用
3.
Effect of Multi-electromagnetic Fields on the Quality of Continuous Casting Hollow Billet;
复合电磁场对连铸空心管坯质量的影响
4.
London Air Traffic Control Center
伦敦空中交通管理中心
5.
RATCC (Radar Air Traffic Control Center)
空中交通管制雷达中心
6.
CATCC (Carrier Air Traffic Control Centre)
航空母舰空中交通管制中心
7.
A iron bar is solid, a pipe is hollow.
铁条是实心的，管子是空心的。
8.
A bar of iron is solid; a pipe is hollow.
铁棍是实心的, 而管子是空心的。
9.
flush type screen
冲洗解堵型无中心管的环空筛管
10.
hollow section guide roller
空心导布辊（由中空的圆柱形金属管制成）
11.
scalloped hollow carrier gun
带有凹坑的空心携弹管射孔枪
12.
Flared type tube fittings--Inverted flare bolts
GB/T5650-1985扩口式管接头空心螺栓
13.
New Globe-tube Soldering Techoology of Soldering Hollow Globe-Net-Shelf Struct ure;
焊接空心球网架结构球—管焊接新工艺
14.
Analysis of Vertical Bearing Capacity of Concrete-Filled Double Skin Steel Tube Columns
中空夹层钢管混凝土的轴心受压研究
15.
A Study on the Ductility Coefficient of Hollow Concrete-Filled Circular Steel Tubular Columns
空心圆钢管混凝土柱延性系数的研究
16.
Development and Application of a New Type Hollow Winding PVC Pipe
新型PVC空心缠绕管应用技术进展
17.
Quality control of GBF pipe cast-in site concrete hollow floor
GBF管现浇混凝土空心楼盖的质量控制
18.
Application of the Hollow Steel-tube Slab Beamless Floor Structure System
钢管空心板无梁楼盖结构体系的应用