英语词汇“middle frame”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

† middle frame n. Music Obsolete rare (in organ-building) a wooden frame used to divide the folds of the bellows reservoir (see quot.).

ΚΠ

1855 E. J. Hopkins Organ ii. 15 The folds of the bellows are subject to a constant strain... To give them the power of resisting the outward pressure of the contained air..a piece of frame-work..is inserted between the two series of ribs. This middle-frame holds the ribs so firmly in their proper positions, that there is no liability of the folds bulging.

1880 C. A. Edwards Organs ii. i. 42 Sixteen ribs are used in the reservoir of bellows..divided..by a wooden frame called the middle-frame.

单词	middle frame
释义	> as lemmas middle frame † middle frame n. Music Obsolete rare (in organ-building) a wooden frame used to divide the folds of the bellows reservoir (see quot.). ΚΠ 1855 E. J. Hopkins Organ ii. 15 The folds of the bellows are subject to a constant strain... To give them the power of resisting the outward pressure of the contained air..a piece of frame-work..is inserted between the two series of ribs. This middle-frame holds the ribs so firmly in their proper positions, that there is no liability of the folds bulging. 1880 C. A. Edwards Organs ii. i. 42 Sixteen ribs are used in the reservoir of bellows..divided..by a wooden frame called the middle-frame. extracted from middleadj.n. < as lemmas
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> as lemmas