| 1. | Mutation are produced by a number of chemicals .
许多化学试剂能产生突变。 |
| 2. | Mainly used in sectors of biotech pharmaceuticals ,
主要用于生物医药，化学试剂等 |
| 3. | Chemical reagents - disodium hydrogen phosphate dodecahydrote
化学试剂磷酸氢二钠 |
| 4. | Chemical reagent . di - potassium hydrogen phosphate thihydrate
化学试剂.磷酸氢二钾 |
| 5. | Chemical reagent - general rules for the determination of ph
化学试剂ph值测定通则 |
| 6. | Mainly used in sectors of biotech pharmaceuticals
主要用于生物医药，化学试剂等 |
| 7. | Chemical reagent - potassium sodium tartrate tetrahydrate
化学试剂四水合酒石酸钾钠 |
| 8. | Chemical reagent - general rules for the gas chromatography
化学试剂气相色谱法通则 |
| 9. | Chemical reagent . hexaammonium heptamolybdate terahydrate
化学试剂四水合钼酸 |
| 10. | Chemical reagent - sodium dihydrogen phosphate , dihydrate
化学试剂磷酸二氢钠 |
