...It is not, however, as important as othermatters, such as the condition of the food substratum or sensitivityof the pituitary-gonadal mechanism, in determining timing and mode ofbreeding activity... 
Richard F. Johnston 「The Breeding Birds of Kansas」
...He comes fromthe people, and very often from a substratum lower than they...
Anthony M. Ludovici 「Nietzsche and Art」
...Because of this sensitivity to substratum vibrations, ants are seldomfound to infest the ties of railroads carrying heavy traffic, orbuildings containing machinery...
Various 「Astounding Stories, June, 1931」
...Precise and lucid, itsummarises our knowledge of the substance which fills all space andpenetrates all matter—the substratum of matter itself...
E. Walter Maunder 「Are the Planets Inhabited?」
...The water is no doubt permanent, forit is supplied by the drainage of the sandhills that surround it, and itrests on a substratum of impervious clay...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
便利！手書き漢字入力検索