The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 648
... surface irregularities , smooth the surface , and apply a texture to the surface . Grinding , the rapid removal of surface metal , is accomplished with an abrasive belt or wheel . Polishing , a form of grinding , uses finer abrasives ...
... surface irregularities , smooth the surface , and apply a texture to the surface . Grinding , the rapid removal of surface metal , is accomplished with an abrasive belt or wheel . Polishing , a form of grinding , uses finer abrasives ...
Page 931
... surface with setae , and contracting body muscles . When the worm begins a forward movement , circular muscles at the anterior end contract , extending the head forward . At the same time the anterior end lifts from the surface to ...
... surface with setae , and contracting body muscles . When the worm begins a forward movement , circular muscles at the anterior end contract , extending the head forward . At the same time the anterior end lifts from the surface to ...
Page 1034
... surface flow is continuously replaced by a landward flow of seawater at greater depths . Varia- tions of this basic pattern are produced either by dif- ferences in size and shape of the estuary or by differences in the relative ...
... surface flow is continuously replaced by a landward flow of seawater at greater depths . Varia- tions of this basic pattern are produced either by dif- ferences in size and shape of the estuary or by differences in the relative ...
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19th century abrasive accelerator acid actinide actor Adams adhesives administrative adult advertising Aegean aerospace Aeschylus aesthetic Afghanistan agriculture aircraft airplane animals artist atomic Bantu Bantu languages basic behaviour Bronze Age Cameroon carved Central centre changes Chari-Nile languages coast Congo contains countries Cretan Crete crops cultural Cyclades dance Djibouti early East Egypt electrons engineering Ethiopia example farm feet figures flight Ghana important increase industry Kabul Kenya Khoisan Knossos known Lake land languages mainland major masks ment metal modern mountains Mycenae Niger Nigeria Nilotic northern organization oxidation particles patterns percent period plants political population production proton region River Sahara savanna sculpture soil solvent South Africa southern species style Sudan Tanzania temperature theory tion tons traditional tropical United usually West Africa western Yoruba Zaire