共 50 条
- [1] PRELIMINARY-STUDY ON THE QUATERNARY CALCAREOUS NANNOFOSSILS OF BEIJING PLAIN KEXUE TONGBAO, 1983, 28 (09): : 1238 - 1242
- [4] DISTRIBUTION OF CALCAREOUS NANNOFOSSILS AND SILICEOUS MICRO-FOSSILS IN PLIO-PLEISTOCENE SEDIMENTS OF MEDITERRANEAN COAST AND OFFSHORE OF ISRAEL - PRELIMINARY-STUDY ISRAEL JOURNAL OF EARTH SCIENCES, 1978, 27 (1-2): : 65 - 71
- [5] PRELIMINARY-STUDY ON CRYPTOSPORIDIOSIS OF CALVES IN SUBURBAN DISTRICT OF BEIJING CHINESE SCIENCE BULLETIN, 1989, 34 (24): : 2071 - 2073
- [6] A PRELIMINARY-STUDY OF CALCAREOUS MICROSPHERES PRODUCED BY A GENETICALLY DEFECTIVE PIG METABOLIC BONE DISEASE & RELATED RESEARCH, 1983, 4 (06): : 365 - 365
- [10] SPECTRAL CATHODOLUMINESCENCE OF QUATERNARY EPITAXIAL LAYERS - A PRELIMINARY-STUDY INSTITUTE OF PHYSICS CONFERENCE SERIES, 1987, (87): : 775 - 780