背面半球 的英文怎麼說
中文拼音 [bēimiànbànqiú]
背面半球
英文
averted hemisphere- 背 : 背動詞1. (用脊背馱) carry on the back 2. (擔負) bear; shoulder
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 半 : Ⅰ數詞1 (二分之一) half 2 (在 中間的) in the middle; halfway 3 (比喻很少) very little; the l...
- 球 : 名詞1 (以半圓的直徑為軸 使半圓旋轉一周而成的立體; 由中心到表面各點距離都相等的立體) sphere; glo...
- 背面 : the back; the reverse side; the wrong side
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The results under scanning electron microscope were that the compound eye of miers is semi - globular. the surface area of the compound eyes is about 25. 12mm2. the ommatidia that form the compound eye are hexagon. on the back of the compound eye there is a thumb - shaped area where have no ommatidia
掃描電鏡觀察顯示三疣梭子蟹的復眼外形為半球形,復眼表面積約為25 . 12mm ~ 2 ,背面有一拇指狀的無眼區,組成復眼的小眼為長六邊形;刀額新對蝦的復眼外形為球形,背面無拇指狀的無眼區,組成復眼的小眼為四邊形。Abstract : the reflective characteristics of sea and sky background radiation, which have important effect on the infrared signature from flight vehicle above sea, are studied in the paper. the statistical distribution of wave facet directions is discussed, the effects of randomly riging and falling sea wave on the sea surface radiation and on the sun light reflection are also discussed. calculation methods of irradiance from sea surface radiation and reflected sun light on observation point are derived in the paper. finally a computation example is given, which shows the sea and sky background radiation has important effect on infrared characteristic especially in the front area of a flight vehicle
文摘:研究了對近海飛行體的紅外特性有重要影響的海空背景輻射的反射特性.討論了波浪面起伏隨機規律,隨機起伏對海面自身輻射及對陽光反射的影響,推演了此種隨機起伏波浪面的自身輻射及反射的陽光在觀測點形成的輻照度的計算方法.給出的算例結果表明,海空背景對飛行體的紅外特性尤其對其前半球的紅外特性有重要的意義
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