直首 的英文怎麼說

中文拼音 [zhíshǒu]
直首 英文
straight stem
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 首 : Ⅰ名詞1 （頭） head 2 （首領） leader; head; chief 3 （表示方位） aspect 4 （姓氏） a surname Ⅱ動...
  1. The scientists mimicked a space environment by freezing the mixture to temperatures close to absolute zero, then exposing it to harsh ultraviolet radiation

    科學家模擬太空環境，首先將混合物降溫，直到接近絕對零度后，以強烈的紫外線照射混合物。
  2. This thesis firstly introduces new demands of aerial product logistics support under high - tech war and some defects of traditional logistics support, and puts forward a kind of system model of aerial product logistics support following data - sharing of cals, and emphasizes detm. secondly it sets forth application of step and xml in the ietm, researchs conversion of xml schema and relation schema, and simply researchs mapping of xml and express. afterword, a based - xml framework of info - transfer between different platform are presented, according to this framework, the author establish a archetypal system of helicopter information query system based xml and dbms

    本文首先介紹了現代高科技戰爭條件下對航空產品維修保障的新要求，概述了傳統的後勤保障技術的不足，遵循cals的數據共享的理念，提出了航空產品維修保障系統模型，重點研究了互動式電子技術手冊；接著分析了step標準和xml技術在製作互動式電子技術手冊中的應用，重點研究了肌模式和關系模式之間的相互轉換，初步研究了xml和express語言之間的映射關系；然後，提出了基於xml的一種解決航空產品信息跨平臺傳遞的解決方案，給出了該方案的具體實現流程和詳細的通訊協議，並開發了基於xul和數據庫的某型號直升飛機的信息查詢原型系統。
  3. A three - dimensional rigid body model is used to study the landing of a helicopter in autorotation

    首先，建立了一個描述直升機自轉著陸飛行動力學特性的三維剛性體模型。
  4. Indeed, it was an axiom with her that the cook can do no wrong.

    首席廚司做事出不了差錯，這對她來說，簡直是天經地義。
  5. This paper is based on " the remodeled item of the 122mm automatic barbette servo system ". it introduced the controlled project of brushless direct current motor realized by dsp at first. on the base of analyzing and studying the driving wave of the brushless direct current motor thoroughly and fully, it carried on the servo system ' s simulink and presented the concrete software and hardware ' s devise of the whole system in the end

    本論文的撰寫是以「 122mm自行迫榴炮伺服控制系統的改型項目」為基礎，首先介紹了dsp實現無刷直流電機的控制方案，在深入、系統的分析和研究了無刷直流電機驅動波形的基礎上，然後進行了伺服控制系統的模擬，最後給出了伺服控制系統具體的軟硬體設計。
  6. Since its foundation by mr bernie hoesman, in 1976, the bsb has undergone many changes. however, it has always been renowned for delivering a high quality of music in a fun and down to earth style of performance

    布里斯本交響管樂團是當地首屈一指的社區管樂團，自1976年霍斯曼先生創立以來，已經歷了多次改組，然而本團一直仍以展現優質且不失風趣、及特殊的南半球平易近人風味的演出而享盛名。
  7. 2. we adopted the method, direct observation to study wild great bustard rationly for the first in china

    2 、在國內首次嘗試利用直接觀察法對野生大鴇的各種行為進行定量化研究。
  8. The helicopter took off from a military parade grounds and was headed to la palmaprison, west of mexico city, which holds several of mexico ' s most feared drug capos, a fox ' s spokesman said

    據報道，韋爾塔一行當天乘坐這架直升機從首都墨西哥城的一座軍事基地前往墨西哥州的一所監獄參加活動。但起飛后不久，直升機就與地面失去了聯系。
  9. . . in the grounds of the chancellery

    . .我們一直在元首府的院子里打靶。
  10. In the grounds of the chancellery

    .我們一直在元首府的院子里打靶。
  11. The document image segmentation is very useful for printing, faxing and such data processing. in this paper, an algorithm is developed for segmenting and classifying document image. feature used for classification is based on the histogram distribution pattern of different image classes

    通過對文檔圖像中不同數據類型直方圖差異的研究，首次提出了一種利用小波域子圖像來增強原始文檔圖像，從而對文檔圖像進行有效分割的演算法。
  12. Using the mouse fetal ovary serum - free culture model, fetal ovaries from 14 day post coitus ( 14 dpc ) mouse were cultured, and treated by ay9944 - a - 7, nystatin and rs - 21745. the results showed that 0. 025, 0. 0625 and 0. 125 um ay9944 - a - 7 or 25, 50 and 75 iu / ml nystatin increased the total number of follicles per ovary significantly ; however, ay9944 - a - 7 and nystatin at the same doses could n ' t cause the same effect on the number of growing follicles and the average diameter of five largest follicles per ovary. 50 u. m rs - 21745 decreased the total number of follicles, the number of growing follicles and diameter of follicles per ovary significantly after 48 h

    首先利用小鼠胚胎卵巢的體外無血清培養模型，培養妊娠14天（ 14daypost - coitus ， 14dpc ）小鼠胚胎卵巢，分別添加能促進mas積累的ay9944 ，制黴菌素，和能抑制mas產生的rs - 21745進行處理，結果表明： 0 . 025 、 0 . 0625利0 . 125 m的ay9944 - a - 7與25 、 50和75iu ml的制黴菌素能顯著提高卵巢中形成卵泡的總數量，但是對生長卵泡數和卵泡直徑的作用不同；而mas合成抑制劑rs - 21745能夠顯著降低形成卵泡的總數量。
  13. The mechanical environment is described in the paper and then the environments in three different orbits are proposed, called leo ( low earth orbits ), meo ( medium earth orbit ) and geo ( geosynchronous earth orbits ). the influence produced by the atomic oxygen, micrometeorites and debris, ionizing radiation and cold welding under vacuum is presented in the paper. some principles are proposed, which can be as the method to choose materials of the mechanism in space environment

    空間環境中力學環境對可動結構的影響直接關繫到機構的設計問題，所以本文第四章中嶽建如：中文摘要浙江大學博士學位論文20024首先詳細論述了空間環境中的力學環境，然後給出了空間環境的三種軌道環境劃分，及每一種環境影響因素對空間可動結構設計的影響，包括原子氧、離子射線、溫度、微隕石和碎片以及真空冷焊現象等環境因素，提出了材料選擇的原則，為可動結構材料選擇提供了一定的依據。
  14. Doped linbo3 ) have been considered as one kind of the most important materials for vhs owing to wider dynamic range and their commercial availability in large size. however, the volume holographic gratings in photorefractive crystals are liable to dark decay and erasure under readout illumination

    體全息存儲的首選記錄材料是光折變晶體（如fe : linbo _ 3 ） ，但直接存儲在晶體中的信息容易受光和熱的影響而丟失。
  15. The thesis focus on the numerical analytical method of curved broadband wire antennas. first, the paper introduced the development of broadband antennas, the common measures to broaden antennas " bandwidth and the study on curved antennas. second, the generalized halen integral equation ( mei ' s equation ) was derived based on the three basic equations of wire antennas by two means and its numerical solution method was discussed

    本文就曲線寬頻帶線天線的數值分析方法展開研究，首先介紹了寬頻帶天線的發展，實現天線寬頻帶的常用方法和曲線天線的研究現狀，然後在直線加載天線滿足的方程的基礎上用兩種方法推導了曲線天線滿足的推廣的海倫積分方程（ mei 』 s方程） ，討論了不同基函數下方程的數值解法。
  16. Side by side bloom, profiting by the contretemps, with stephen passed through the gap of the chains, divided by the upright, and, stepping over a strand of mire, went across towards gardiner street lower, stephen singing more boldly, but not loudly, the end of the ballad

    幸而發生了這一事故313 ，布盧姆和斯蒂芬才肩並肩地從那被直柱隔開來的欄鏈的空隙爬過去，邁過一溜兒泥濘，朝著下加德納街橫跨過去。斯蒂芬雖然沒有放開嗓門，卻用更加激越的聲調唱完了那首歌謠：
  17. Gene engineering technology is more superior than the cross breeding and directive breeding technology with its short cycle, low cost and high benefit. though traditional breeding technology has been used for a long time. now the direct reports for the changes of the flower color by the chi ( chalcone isomerase ) gene are a few what we known.

    關于花色結構基因查爾酮異構酶chi （ chalconeisomerase ）基因對花色改變的直接報道很少，因此，本論文選用了chi基因為目的基因，以純深紅色和純白色矮牽牛（ petuniahybidavilm . ）為材料，研究了chi基因的共抑制和反義抑制以及表達產物增加對花色改良的作用，並在花色改變植株中首次觀察到花器官變異。
  18. Answer : because the first head of the foreign section of the secret service bureau, captain sir mansfield cumming rn, always signed himself mc or c in green ink and the tradition has continued till today, partly to aid the security needed for siss staff

    答案是因為秘密情報局外事處的首任處長mansfield cumming rn上校總是在簽名時稱自己為「 mc 」或者「 c 」 ，這個傳統一直流傳至今，這也是出於考慮英國秘密情報局（ sis ）成員自身安全的需要。
  19. The kind whisper went to my heart like a dagger.

    這仁慈的低語象一把匕首直刺進我的心。
  20. In this dissertation, al - si / sicp composites brake rotor with diameter of 1200mm was firstly fabricated by a novel spray deposition technology, and simultaneously coupled brake pad was prepared by a novel dry - powder processing route, termed as two - step pressing process. a wedge pressing technology was developed to densify the as - produce al - si / sicp composite brake rotor

    本文首次採用噴射沉積技術制備了直徑達1200mm的al - si / sicp制動盤，同時採用二次壓制工藝制備出了配套的合成閘片，研究了制動盤的楔壓緻密化技術、機理，復合材料摩擦磨損性能及機理。
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