be at

n.

a regular route for a sentry or policeman

同义词：beatround

the rhythmic contraction and expansion of the arteries with each beat of the heart

同义词：pulsepulsationheartbeatbeat

the basic rhythmic unit in a piece of music

同义词：rhythmbeatmusical rhythm

a single pulsation of an oscillation produced by adding two waves of different frequencies; has a frequency equal to the difference between the two oscillations

同义词：beat

a member of the beat generation; a nonconformist in dress and behavior

同义词：beatnikbeat

the sound of stroke or blow

同义词：beat

(prosody) the accent in a metrical foot of verse

同义词：metermetremeasurebeatcadence

a regular rate of repetition

同义词：beat

a stroke or blow

同义词：beat

the act of beating to windward; sailing as close as possible to the direction from which the wind is blowing

同义词：beat

Can Ecological Receptors Really Be At Risk?
Atmospheric deposition of 7 Be at a coastal Mediterranean station
Coulomb dissociation of a halo nucleus 11 Be at 72 A MeV
A climatology of 7 Be at four high-altitude stations at the Alps and the Northern Apennines
Electron impact ionization of ? and photoionization of Be at the K edge
Ending up on the Wrong Side: Must the Two Forms of Radicalism Always Be at War?
Concentration measurements of 7 Be at ground level air at Palermo, Italy—comparison with solar activity over a period of 21 years
Production of neutron-rich isotopes by cold fragmentation in the reaction 197Au + Be at 950 A MeV
Production of neutron-rich isotopes by cold fragmentation in the reaction 197 ja:math Au + Be at 950 A ja:math MeV
Consumption of gluten-free products: should the threshold value for trace amounts of gluten be at 20, 100 or 200 p.p.m.?