block fields meaning in Chinese

石场

石海

• block:    n. 1.片，块，大块；粗料，毛料；木料；石料；金属块； ...
• field:    n. 1.原野，旷野；(海、空、冰雪等的)茫茫一片。 2 ...

Examples

1. The measurement and analysis of output factor of lead block fields for high energy electron beam of varian 2300 c d linear accelerator
   直线加速器高能电子束铅挡野输出因子的测定与分析