lead-lead age
4.LEAD ISOTOPE MEASUREMENTS BY THE "DOUBLE SPIKE" TECHNIQUE AND "AGSO-CSIRO" Pb MODEL AGE
6.ALSO REMEMBER the age old boxing adage: LEAD WITH SPEED and FOLLOW WITH POWER!
7.Efforts should be made to study and develop the products that meet the material and cultural needs of the old people, encourage and lead the development of the market centering on the old-age household consumption;
9.ON THE AGE OF THE YUTANG LEAD—ZINC DEPOSIT,AND TRILOBITE FOSSILS OF LOWER,MIDDLE CAMBRIAN,HUAYUAN,HUNAN PROVINCE


