Similar words: directive, infectivity, effectivity, selectivity, affectivity, objectivity, subjectivity, collectivity. Meaning: n. 1. the property of a microphone or antenna of being more sensitive in one direction than in another 2. the quality of being directive.
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31. The results for element input impedance , radiation efficiency of space wave, directivity and radiation pattern are presented.
32. How to get the desired frequency response and directivity pattern?
33. The directivity of new end-fire array is higher than ordinary ones and the coupling is lower than Hansen-Woodyar...
34. Interference (or 'lobing') between the two units causes a dip in power response around this frequency, with a peak above it due to their differences in directivity.
35. It is proposed to use the energy concentration factor and directivity factor as indication of the directivity of the array,(http://sentencedict.com/directivity.html) and formulae as well as the way of using them are presented.
36. No obvious directivity occurs in the songs of black cicada.
37. The radiation directivity of a complicated conformal array of underwater acoustic transducers is presented based on the boundary element method.
38. The inheritance that its performance grows in dimensional productivity, directivity, acceleration and internationally 4 respects.
39. A new method is described, which introduces linear sweep to determine the electroacoustic qualities of loudspeakers, such as frequency response and directivity of loudersperkers.
40. Laser is a new light source. Comparing with ordinary light the laser has good monochromaticity , directivity, coherency, high brightness, high power and high energy etc.
41. The establishment question situation, can spiritedly cause the classroom, the knowledge simple to be easy to understand, its intense practice directivity is extremely obvious.
42. A built-up circular piston sound source is established in this paper. The directivity formula of its far field is obtained, and its validity is simulated.
43. On the basis of lots of preliminary tests of the hydrophone, sound pressure sensitivity in the air and directivity pattern were tested as well as the ability of receiving sound signal in water.
44. Millimeter-wave dielectric lens antenna is a kind of aperture antenna with high directivity.
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