mass balancen.

Brit.

/ˈmas ˌbaləns/, U.S.

/ˈmæs ˌbæləns/

Origin: Formed within English, by compounding. Etymons: mass n.², balance n.¹

Etymology: < mass n.² + balance n.¹ Compare slightly earlier mass-balance v.

1. Aeronautics. A state in which inertial coupling between the angular movement of a control surface and other degrees of freedom of an aircraft is eliminated, so avoiding flutter of the surface; (also) a mass attached to a control surface to bring about such a state.

ΘΚΠ

society > travel > air or space travel > a means of conveyance through the air > aeroplane > qualities and parameters of aircraft > [noun] > mass balance of control surface

mass-balancing1934

mass balance1935

1935 A. J. S. Pippard & J. L. Pritchard Aeroplane Struct. (ed. 2) xii. 238 A bob weight used to give mass balance to an aileron should be placed as far outboard of any point of wing support as possible.

1959 J. L. Nayler Dict. Aeronaut. Engin. 168 The mass balance may be a single lump of metal or be distributed along the span of the control surface and connected to it by a series of links.

1966 F. G. Irving Introd. Longitudinal Static Stability Low-speed Aircraft viii. 82 Full mass-balance..may not be required as an anti-flutter measure on slow-speed aircraft.

2. The change in mass occurring in an object, system, or component of a system over a particular period of time. Frequently attributive.

ΚΠ

1959 Jrnl. Glaciol. 3 522 A distinction is made between the meteorological water budget for Antarctica and the glaciological mass balance for the ice sheet.

1975 Jrnl. Sci. Soc. Thailand 1 167 The effect that man has had on the mass balance of mercury in the marine environment is relatively insignificant.

1997 Jrnl. Environmental Radioactivity 40 185 A numerical mass-balance model is developed which can be used to estimate rates of soil redistribution on uncultivated land.

This entry has been updated (OED Third Edition, December 2000; most recently modified version published online March 2022).

单词	mass balance
释义	mass balancen. Brit. /ˈmas ˌbaləns/, U.S. /ˈmæs ˌbæləns/ Origin: Formed within English, by compounding. Etymons: mass n.², balance n.¹ Etymology: < mass n.² + balance n.¹ Compare slightly earlier mass-balance v. 1. Aeronautics. A state in which inertial coupling between the angular movement of a control surface and other degrees of freedom of an aircraft is eliminated, so avoiding flutter of the surface; (also) a mass attached to a control surface to bring about such a state. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > aeroplane > qualities and parameters of aircraft > [noun] > mass balance of control surface mass-balancing1934 mass balance1935 1935 A. J. S. Pippard & J. L. Pritchard Aeroplane Struct. (ed. 2) xii. 238 A bob weight used to give mass balance to an aileron should be placed as far outboard of any point of wing support as possible. 1959 J. L. Nayler Dict. Aeronaut. Engin. 168 The mass balance may be a single lump of metal or be distributed along the span of the control surface and connected to it by a series of links. 1966 F. G. Irving Introd. Longitudinal Static Stability Low-speed Aircraft viii. 82 Full mass-balance..may not be required as an anti-flutter measure on slow-speed aircraft. 2. The change in mass occurring in an object, system, or component of a system over a particular period of time. Frequently attributive. ΚΠ 1959 Jrnl. Glaciol. 3 522 A distinction is made between the meteorological water budget for Antarctica and the glaciological mass balance for the ice sheet. 1975 Jrnl. Sci. Soc. Thailand 1 167 The effect that man has had on the mass balance of mercury in the marine environment is relatively insignificant. 1997 Jrnl. Environmental Radioactivity 40 185 A numerical mass-balance model is developed which can be used to estimate rates of soil redistribution on uncultivated land. This entry has been updated (OED Third Edition, December 2000; most recently modified version published online March 2022). < n.1935
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