1.
Contusion eyes were induced by dropping a steel ball of 20 g from the height of 20 cm for 100 times.
扑打组:20g铁球20cm高度拍打眼球100次。
2.
Blunt traumatic eyes were induced by dropping steel ball of 20 g from 20 cm height for 100 times.
拍打组:20g铁球20cm高度拍打眼球100次。
3.
A Study of Thermal Analysis Method for the Prediction of Nodularity of Ductile Cast Iron
热分析法测试球墨铸铁球化率的研究
4.
Pig iron used for spherical graphite cast iron
GB/T1412-1985球墨铸铁用生铁
5.
A five iron used in golf.
高尔夫球5号铁头球杆
6.
A seven iron used in golf.
7号铁头球棒用于高尔夫球中的七号球铁头球棒
7.
oxidation free iron on the surface of the moon
月球表面上不氧化的铁
8.
Ductile iron pipe fittings
GB/T13294-1991球墨铸铁管件
9.
LL group chondrite
低铁低金属群球粒陨石
10.
Cast iron and copper alloy ball valves
GB/T15185-1994铁制和铜制球阀
11.
football lacer of iron or steel
足球穿带针,钢铁制
12.
Pittsburgh Steelers
匹兹堡钢铁队（橄榄球）
13.
Development of GGG40.3 Grade Nodular Iron Valve Body Casting
GGG40.3球铁阀体铸件的研制
14.
The Study of Making Slanting Wedge in Freight Train with ADI
用贝氏体球墨铸铁制作铁路货车斜楔铁的研究
15.
Study on the Manufacturing Procedure of Cast Ferritic Ductile Iron;
铸态铁素体球墨铸铁的生产工艺研究
16.
The throwing events consist of javelin, discus, hammer and shot.
投掷项目包括标枪、铁饼、链球和铅球。
17.
Development of Wear-resistant Ductile Iron Mill Ball with Bainite and Martensite
贝氏体—马氏体抗磨球铁磨球的研制
18.
Application of Computer in Technological Design of Grinding Ball
计算机在球铁磨球工艺设计中的应用