...And to cut in another flask meant theopening of a hidden valve... 
Various 「Astounding Stories, August, 1931」
...The race must bepreserved, though woman be degraded to a meremachine,—and the marriage institution is our onlysafety valve against the pernicious sex awakening ofwoman...
Emma Goldman 「Marriage and Love」
...This is one of the most natural genera in the modern systems of conchology, as it includes all fresh-water bivalves having two rough cardinal teeth in one valve and one in the other...
William Swainson 「Zoological Illustrations, Volume I」
...Anal lobes: in Lecaniinae, a pair of small, triangular,hinged processes forming a valve which covers the analorifice...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Interventricular valvule: of heart, lies in front ofseluilunar valve...
John. B. Smith 「Explanation of Terms Used in Entomology」
...: in maleHomoptera, a pair of pieces following the last full ventralsegment; usually preceded by a short piece, - the valve...
John. B. Smith 「Explanation of Terms Used in Entomology」
...The larva of a Gnat (Culex) has projecting from the hind regionof the abdomen a long tubular outgrowth, at the end of which are thespiracles, guarded by three pointed flaps forming a valve...
Geo. H. Carpenter 「The Life-Story of Insects」
...They elevate one valve above the top of the water, which is used as a kind of sail, while they float on the other, which remains on the surface...
Samuel Griswold Goodrich 「Illustrative Anecdotes of the Animal Kingdom」
...At the lower end of the gastric sac is developed the valve thatseparates it from the duodenum (the pylorus, Fig...
Ernst Haeckel 「The Evolution of Man」
...Throughout the whole of such gatherings,and in fact generally when prayer is being gone on with, the steam iskept well up, and the safety valve often lifts to let off the extrapressure...
Atticus 「Our Churches and Chapels」
...With suremechanical fingers the emergency system gripped the valve handles andmotor levers; Keith swung the NX-1 onto a level keel, straightenedher out, and decreased speed still more...
Various 「Astounding Stories, February, 1931」
...The valve of every one of the sparetanks had been opened...
Various 「Astounding Stories, June, 1931」
...He opened the valve of the last air cylinder and seated himselfresignedly on the bench...
Various 「Astounding Stories of Super-Science September 1930」
...The valve slowly closed...
Various 「Astounding Stories of Super-Science, December 1930」
...He lay down on the operating table and the dwarf fitted an anesthesiacone over his face and opened the valve of the gas cylinder...
Various 「Astounding Stories of Super-Science, October, 1930」
...Bird turned to the valve of the lethanecylinder...
Various 「Astounding Stories of Super-Science, October, 1930」
...The balloon-like blouse, ofcourse, was designed to hold asmall reserve supply of air, for anemergency, should anything happento the tank upon the shoulders, orthe valve which released the airfrom it...
Sewell Peaslee Wright 「Vampires of Space」
...Notime to explain anything now, exceptthis: as soon as you're outsidethe ship, turn the valve that opensthe compressed air flask...
Sewell Peaslee Wright 「Vampires of Space」
ランダム例文：
lamentable machinegun presumptions
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