無維量單位 的英文怎麼說

中文拼音 [wúwéiliángdānwèi]
無維量單位 英文
dimensionless unit
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 維 : Ⅰ動詞1 （連接） tie up; hold together; link 2 （保持; 保全） maintain; safeguard; preserve; keep ...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  1. The main part and key technique of the cpa system is study : the generation of the femtosecond laser pulse is study, the modulation and maintenance of the ti : s laser is learned ; the types of the measurement for ultrashort laser pulse is generalized and the interferometric autocorrelation is expatiated ; the varieties of the stretchers is sum up and aberration - free stretcher is calculated and optimized to improve the stretching ratio ; the pulse selection is analyzed and a single pulse can be selected successful from the pulse train at a repetition rate of 82mhz ; the kinds of the amplifier in cpa system is gathered up, the eight - pass pre - amplifier and a good many effects in it is investigated. finally, the second, third and fourth - order dispersions in cpa system is analyzed systemicly, and the according means for dispersion compensation is worked out

    對cpa系統的主要環節及關鍵技術進行了研究：掌握了鈦寶石激光器的調節和維護技術，較深入地研究了飛秒激光脈沖產生的機理，其中對群速色散、自相位調制、自鎖模等問題進行了詳盡的分析；總結了超短激光脈沖的測量技術，重點研究了干涉自相關測量法；在總結展寬器類型的基礎上，對無象差展寬器進行了理論計算、優化設計，提高了展寬倍數；深入論述了脈沖列的選單問題，熟練掌握了脈沖選單技術。
  2. A new full - wave measurement circuit structure is put forward that would increase distribution automation system reliability and veracity. the distributed protection and monitoring unit in this paper can instead of general instruments of low voltage distribution system. it not only combines ampere meter, voltage meter, active power meter, reactive power meter and power meter, frequency meter into a meter, but also increases monitoring position switch, control bus switching alternately and monitoring energy

    本文研製的保護和測控單元，可替代低壓配電系統中所使用的常規儀表，將原來迴路需要的電流表、電壓表、有功功率表、無功功率表和功率因數表、頻率表簡化為一塊表，並增加了位置開關量檢測，控制母線投切和電度監測功能，從而極大的簡化了低壓配電二次儀表設計、安裝調試，提高了運行、維護和管理水平。
  3. The article maintains that the main points of bush doctrine include : ( 1 ) regarding " terrorists " and " rogue states " as immediate rivals ; ( 2 ) defining the prevention of rising powers from challenging the us ' s hegemonic position m the world as a long - term strategic objective ; ( 3 ) pursuing the strategy of " pre - emptive war " ; ( 4 ) stressing the importance of safeguarding the us home land security ; ( 5 ) attaching much importance to the role of military power ; ( 6 ) showing a strong tendency towards unilateralism ; and ( 7 ) having strong ideological color

    文章指出，布希主義的主要內容是： （一）以「恐怖分子」和「無賴國家」作為美國的主要現實對手； （二）以防止能對美國霸權地位構成挑戰的大國的崛起作為長期戰略目標； （三）推行「先發制人戰略」 ； （四）重視維護美國本土安全； （五）倚重軍事力量的作用； （六）單邊主義傾向突出； （七）意識形態色彩嚴重。
  4. Fibre optic interconnecting devices and passive components - basic test and measurement procedures - part 3 - 30 : examinations and measurements - polish angle and fibre position on single ferrule multifibre connectors

    光纖互連設備和無源元件.基本試驗和測量程序.第3 - 30部分:檢查和測量.單套圈多纖維連接器的拋光角度和纖維位置
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