- The invention relates to a nucleic acid controlling the expression of a useful polypeptide, particularly in the posterior silk glands of Bombyx mori .
- The problems on acidity control of complexometric titration were further studied,and the new method of calculation on the dimension of suitable acidity about the titration in metal ion were proposed.
- He gave me a taste of his acid wit.
- Acid irritates the stomach lining.
- Acid had pitted the surface of the silver.