進步衰減器 的英文怎麼說

中文拼音 [jìnbùshuāijiǎnqì]
進步衰減器 英文
step attenuator
  • 進 : 進構詞成分。
  • 步 : Ⅰ名詞1 （步度; 腳步） pace; step 2 （階段） stage; step 3 （地步; 境地） condition; situation; st...
  • 衰 : 衰動詞（衰弱） decline; wane
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 進步 : 1 （向前發展） advance; progress; improve; step foreward; move foreward 2 （先進的） （politicall...
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  1. The last part of the thsis presents a novel fast response digital variable optical attenuator. this device is driven by two electromagnetic driving units rather not stepper motors. a wide attenuation ( 40db ) was fully digitized and can be set by a certain number of driving pulses

    論文最後針對現有數字可調光衰減器均由步進電機驅動，體積龐大，造價高昂且速度緩慢的缺點，利用微反射單元設計了一種高速數字式可調光衰減器。
  2. The opinions of experts on this subject are as follows : people in middle age are in a more stable stage of life, while people in old age have entered the deterioration stage. since people in old age engage in less activity and suffer from physical depletion, they should reduce their intake of food accordingly. otherwise, it is very easy for them to become overweight, which is a great enemy to the health of the elderly

    專家的看法：人到中年，屬于穩定期，進入晚年，更是衰老期，人步入晚年，活動減少，消耗減少，因此食量也應相對的減少，否則極易造成肥胖，而肥胖是老年健康的大敵，人到老年期，一切機能都在衰退中，如不適量地減食，會造成消化器官負擔過量，易染胃腸疾病。
  3. Second, the mode fields of a strip waveguide and some slab waveguides have been simulated by applying finite - difference time - domain ( fdtd ) method. the curvature radius ; vicinity coupling ; transition loss and power attenuation of a s - shape bend waveguide have been analysed numerically by employing wide angle finite - difference beam propagation method ( fd - bpm ), as well as the coupling loss of optical fiber and waveguide. in addition, the framework of the s - shape waveguide laser has been

    其次，應用時域有限差分法，結合波導模式理論對條形與平面波導進行了模場模擬;應用廣角有限差分光束傳播法，對s形彎曲波導的曲率半徑、鄰近耦合、過渡損耗、功率衰減以及波導與光纖的各種耦合損耗進行了數值分析，並在此基礎上，對s形波導激光器的結構作了初步設計。
  4. In this paper, firstly, three - dimensional geometrical models of the target and ir flares are established and by using the software vega missile attacking process is real - time simulated visually. secondly, the ir radiation characteristic of the target, background and the ir flares are analyzed, in which the wave radiation of the sun at different time, wind speed, the relative humidity and ir radiation attenuation characteristic of the atmosphere is under consideration. from above the ir image of the target, ir flare and the background are got and then are normalized to gray color image that will be showed in a child window in real time

    本文通過三維建模工具creator建立目標、背景和干擾的三維模型，再通過視景模擬軟體vega生成載機、導彈和目標飛機的可見光場景圖像，實時地對導彈攻擊工程進行可視化模擬；並分析了目標、背景和干擾的紅外輻射特性，計算出傳感器路徑上大氣衰減等等，將經過衰減的目標、背景和干擾的輻射強度量化為灰度圖，以子窗口形式實時顯示；進一步可以使目標和干擾按照各自的運動軌跡運動，便可產生動態的紅外熱圖像序列。
  5. Through persistant improvement of the structure, we successfully designed and fabricated a voa as small as 25x10x7 mm3. the attenuation was introduced by a micro - silicon mirror, with its direction can be fine tuned through the balance of a pair of electromagnetic forces

    於是本文提出改進方案，設計並製作了一種利用永磁體磁力作為回復力的可調光衰減器，器件封裝尺寸進一步降低，具有較好的工作線性度及穩定度，且結構緊湊，工作穩定，工藝簡單，成本低廉，易於批量生產。
  6. From these results, mz - type voa based on two 3db directional couplers was studied further, the characters comparison between single and cascaded mz - type voa were given. the reflection leakage voa do n ' t depend on high temperature stability as mz - type need, while the latter own much lower power consumption than the former

    在此基礎上，進一步分析了帶有3db定向禍合器的mz型熱光voa的衰減特性和器件藕合參數的關系，並給出了單個voa和衰減波譜更平坦的級聯voa之間的特性對比。
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