| English | Chinese |
| optimum particle-size range | 最佳粒度范围 |
| particle-size range | 粒度范围 (Ferrosilicon is supplied in lumps or as crushed and screened particles. The particle-size ranges and tolerances shall be in accordance with table 2.硅铁以块状即经破碎并筛分的块状供货。其粒度范围与公差应符合表2的规定。) |
| particle-size range | 粒度范围 |