| 单词 |
manostat |
| 释义 |
manostat|ˈmænəʊstæt|
[f. mano- (in manometer) + -stat.]
Any device for automatically maintaining a constant pressure in an enclosed space. Hence manoˈstatic a.
1900Jrnl. Physical Chem. IV. 546 (heading) On a manostat. 1923Glazebrook Dict. Appl. Physics III. 191/2 The majority of manostats are designed on the broad principle that whenever the pressure departs from the desired constant value, the manometer itself, through the change in liquid level in one of its limbs, automatically actuates either a supply or removal of gas..or else some equivalent means of restoring the desired pressure. 1936Jrnl. Amer. Chem. Soc. LVIII. 1703/1 The new manostatic technique. 1966Encycl. Industr. Chem. Analysis I. 617 As a general rule, manostats controlling four fixed pressures of 10, 50, 100, and 200 Torr, and accurately adjusted to these pressures, provide a range of operating pressures quite adequate for every distillation situation. Below 50 Torr, pressure regulation is unsatisfactory when mercury is used as the manostatic fluid. |
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