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61. The mesh shapes include circularity, sexangle, ellipse, square, prism and so on.

62. Fire rating: H-3 Protection Grade: IP54 It has wide light distribution curve and its prism glass can reduce glace.

63. In this paper, it is indicated than the refractive index of extraordinary rayin the Nicol prism often means ractive index. Also the method calculated thisractive index has been given. Sentencedict.com

64. The composition the optical reflector system is analyzed in detail, eventually a half pentagonal prism is taken to be the imaging devices.

65. You may have seen white light split into colours when it passes through a triangular prism. This is called dispersion.

66. In this paper, the triangular prism elements are used for discretizing the computational domain with Edge-Based Vector Finite Element Method.

67. The prism effect produced by moving optical center of presbyopic glasses was put on the right and left lenses averagely by 1/2-1/3 degree of exophoria.

68. The lensometers is also called measural lens dioptre instrument, to measure spherical lens dioptre, cylindric lens dioptre and axis, prism dioptre, and lens optical center etc.

69. Glass hood is made from prism toughened glass, with good retraction performance.

70. The trigonal prism yields three isomers also, but there are only two octahedral arrangements FOR this FORmulation.

71. Aided by the two virtual images of the seam light source on the seam plane observed at the back of the prism, it can reach the systematic coaxis by regulating them to symmetrize the seam.

72. Which of the following sets of shapes can make a complete pentagonal prism?

73. In this paper, structure, polarizing principle and characteristics of the Rochon prism used in HITACHI 180_Series Zeeman atomic absorption spectrophotometers are described.

74. For this reason a renovation design of building a prism shape of overfall weir to stop the water flow and optimal measures were proposed and adopted. Simulation experiment resu...

75. The image formula for a prism is given for a narrow bundle of rays from an object point to an image point, and the image pictures are drawn by computer for some given conditions.

76. Image-stable principle of down-reflection image-stable tank aiming mirror is fully demonstrated with prism rotary principle of optical engineering theory.

77. A telescopic device is used in conjunction with the prism.

78. The grating spectrograph and prism spectrograph were used and analyze the visible spectra of Cu - based alloys.

79. This paper-emphasizes on the method of automatic prism angle error measurement using Twyman interferometer, CCD charge coupled device and microcomputer.

80. A new scheme is put forward, in which a light source is used for glancing incidence measuring index of refraction of prism, and the only one boundary between light and shade can be exactly found.

81. This study is useful to pentagonal prism manufacture process and adjustment, and helpful to correct wave-front error of scanning beam turning during wave-front measurement of large aperture telescope.

82. The device can be calibrated so that the prism - rotating dial reads directly in wavelength.

83. Since the big image is hardly observed in double prism interference experiment, the size of the focal distance is deduced according to the theory.

84. A method of measurement of bubble diameter in the prism is given. The measured diameter direction is incident laser beam direction.

85. They constitute the triangular prism of the gloomy life of "small potatos" by their special perspectives.

86. Experiments were performed in horizontal and vertical conduits with diameter of 50 mm respectively, adopting air and water as flow media and a triangular prism as the vortex-forming body.

87. This paper is the fourth in a series publishing the results of an objective prism survey for emission-line galaxies with the 60 cm Schmidt Telescope of the Beijing Astronomical Observatory.

88. Two approximate formulas, which provide the basis for chosing or designing the uniaxial crystal prism, are obtained and they are shown to be correct basically by the experiments.

89. Since the middle Miocene, the South China Sea had subducted beneath the Philippine Sea Plate along the Manila Trench, and the subduction prism came into being.

90. While a prism can make a dramatic rainbow, atmospheric refraction isn't that strong.