| 通用英语 (频次在1000以上) | 科普英语 (频次在500~1000之间) | 专业英语 (频次在500~50之间) |
| coal (9557) | lead (1000) | heat (496) |
| particle (6471) | interaction (964) | quality (494) |
| flotation (5721) | gas (960) | dissolution (492) |
| surface (5510) | structure (955) | degree (483) |
| mineral (4308) | measurement (952) | step (483) |
| sample (4293) | carbon (951) | operation (481) |
| process (3677) | reduction (934) | bond (477) |
| concentration (3324) | grade (930) | settle (474) |
| water (3273) | dosage (906) | component (470) |
| recovery (2971) | mass (891) | chloride (469) |
| ash (2730) | spectrum (891) | pore (468) |
| solution (2711) | plant (887) | approach (467) |
| content (2694) | oil (885) | extract (467) |
| model (2618) | mill (880) | industry (467) |
| temperature (2564) | species (876) | gold (459) |
| analysis (2366) | characteristic (864) | power (457) |
| rate (2349) | type (862) | ray (457) |
| separation (2295) | liquid (857) | technique (457) |
| bubble (2161) | slurry (855) | standard (455) |