| First letter | Keywords | Number |
|---|
| 0-9 | 3D printing (3), 5-hydroxymethylfurfural (3), 3DIC (1), 2'-Octoxyacetophenone (1), 3D imaging (1), 2,2'-bipyridine (1) etc. | 10 |  |
|---|
| A | Adsorption (11), Ammonia (7), Antibody (3), atomic layer deposition (3), aqueous two-phase system (3), Agglomeration (3) etc. | 157 | |
|---|
| B | Biomass (5), bio-oil (3), biomethanation (3), Biomass gasification (3), Biochar (3), Biogas Upgrading (2) etc. | 89 | |
|---|
| C-CH | Carbon nanotube (8), CFD (8), catalyst (6), Carbon Neutral (6), CCS (5), carbon dioxide (5) etc. | 157 | |
|---|
| CI-CZ | CO2 capture (12), Crystallization (8), CO2 (7), Computational Fluid Dynamics (6), COSMO-SAC (5), CO2 methanation (4) etc. | 171 | |
|---|
| D | deep learning (6), deep eutectic solvent (6), Deep Tech (5), Dehydration (4), Direct Air Capture (4), drying (4) etc. | 128 | |
|---|
| E | electrocatalysts (5), Escherichia coli (5), Extraction (4), Electrolysis (4), electrocatalyst (3), Economic Evaluation (3) etc. | 108 | |
|---|
| F | Fast Pyrolysis Bio-Oil (2), Fluid Mechanics (2), Fischer-Tropsch (2), Flame spray pyrolysis (2), Fischer-Tropsch synthesis (2), Flue gas (2) etc. | 69 | |
|---|
| G | Graphene (3), Green Transformation (2), Green Hydrogen (2), General-purpose plastics (1), Gel (1), graphical kinetic methods (1) etc. | 53 | |
|---|
| H | Hydrogen production (15), hydrogen (11), Hydrogel (7), Hydrogen storage (5), Hybrid model (2), Hydrogen Evolution Reaction (2) etc. | 128 | |
|---|
| I | Interfacial polymerization (2), ion gel (2), interfacial affinity (2), I-V characteristics (2), Infection risk (1), Image recognition (1) etc. | 63 | |
|---|
| K | Key group (1), Knowledge Management (1), kinetic parameters (1), kolbe electrolysis (1), kernel method (1), kinetic study (1) etc. | 8 | |
|---|
| L | liquid-liquid mixing (3), liposome (3), Lithium-ion battery (3), lithium-Ion batteries (3), Lithium-ion Battery Recycling (2), Life cycle assessment (2) etc. | 78 | |
|---|
| M-MH | Machine Learning (36), membrane (12), metal-organic frameworks (11), Metabolic Engineering (9), mechanochemistry (5), Methane fermentation (4) etc. | 154 | |
|---|
| MI-MZ | molecular dynamics (12), mixing (11), Molecular dynamics simulation (5), microfluidic device (3), Microalgae (3), Molecular Dynamics Simulations (2) etc. | 107 | |
|---|
| N | numerical simulation (12), nanoparticles (4), nanoparticle (4), neural network (3), Nanofiltration (2), nucleation (2) etc. | 89 | |
|---|
| O | Optimization (4), Operations and Maintenance (2), organic chelating ligand (2), outward calcium ion leaching (1), ostructured catalysts (1), Oyster (1) etc. | 43 | |
|---|
| P-PH | PFAS (6), Photocatalyst (3), pervaporation (3), peptide (2), phase equilibrium (2), Particle Size (2) etc. | 81 | |
|---|
| PI-PZ | Process Simulation (9), polymer (5), Process modeling (5), Process design (3), Process informatics (2), Plot Plan (2) etc. | 139 | |
|---|
| Q | Questionnaire Survey (1), Qualification system (1), Quantum computing (1), quantitative visualization (1), Quadrupole Mass Spectrometry (1) | 5 | |
|---|
| R | Renewable energy (4), Redox flow battery (4), Recycling (4), Regenerative medicine (3), Recycle (3), Rotating bed (3) etc. | 84 | |
|---|
| S-SO | simulation (4), seawater electrolysis (4), slug flow (4), SOEC (3), Softsensor (3), Slurry (2) etc. | 112 | |
|---|
| SP-SZ | Supercritical Fluid Deposition (5), Startup (5), Surfactant (4), Suspension (3), spray drying (3), super-critical carbon dioxide (2) etc. | 94 | |
|---|
| T | Transfer learning (2), thermal management (2), Topological insulator (1), Turbulent mixing model (1), Transcription factor (1), Trump Administration (1) etc. | 58 | |
|---|
| U | Ultrasound (3), uMLIP (1), ultrafiltration membrane (1), UVGI (1), Ultrasonic velocity (1), Upgrading (1) etc. | 15 | |
|---|
| V | viscosity (5), Vesicle (3), Viscoelastic Fluid (2), Viscoelasticity (1), vaccine (1), VRC (1) etc. | 27 | |
|---|
| W | Water electrolysis (10), water treatment (7), Woody Biomass (3), Waste utilization (2), Waste heat reduction (1), water treatment membrane (1) etc. | 45 | |
|---|
| X | X-Ray CT (1) | 1 | |
|---|
| Y | yielding behavior (1), Yarrowia lipolytica (1), Yttrium doping (1), Yield stress (1) | 4 | |
|---|
| Z | Zeolite (12), ZIF-8 (2), ZnO formation (1), Zero Liquid Discharge (1), zwitterionic polymer (1), Zinc Oxide (1) etc. | 21 | |
|---|
| 非英数字 | * (17) | 17 | |
|---|
