selective 中文意思是什麼

音標 [si'lektiv]
selective 解釋
adj. 形容詞 1. 選擇的；挑選的；有選擇性的；淘汰的。
2. 【無線電】選擇性的。
adv. 動詞 副詞 -ly
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. Abstract : the reaction conditions, catalysts of selective oxidation of propane to acrolein and the mechanism of acrolein formation were reviewed

    文摘:論述了丙烷選擇氧化制丙烯醛催化反應的反應條件、催化劑和丙烯醛生成機理等方面的研究進展。
  3. The rhizosphere microflora dynamics of bacteria, actinomyces, fungi and four bacterial physiological groups of kentucky bluegrass under different quality of illumination were studied by adopting selective culture medium to explain scientifically response regular of this grass to different illumination condition

    摘要研究了草地早熟禾在不同光照條件下其根際與非根際細菌、真菌、放線菌以及氨化細菌、硝化細菌、好氣性纖維素分解菌、固氮菌生理類群的區系動態變化，擬從根際土壤微生物數量變化方面來闡述草地早熟禾對不同光照條件的響應規律。
  4. Epinephrine is the mainstay of anaphylaxis therapy. adjunctive therapy with antihistamines and, for those with asthma, inhaled selective ? 2 - adrenergic agonists, such as albuterol, may be helpful but cannot replace epinephrine

    腎上腺素是治療速發型過敏反應的主要藥物，抗組胺藥及吸入選擇性? 2腎上腺能阻滯劑（如沙丁胺醇）治療哮喘等輔助治療對患者有益但不能取代腎上腺素。
  5. The various methods of purification through the use of selective adsorption have several features in common.

    使用選擇吸附的各種凈化方法都有幾個共同特徵。
  6. Advances in light alkenes production by hydrocarbon selective oxidation

    烴類選擇氧化制低碳烯烴的研究進展
  7. Effect of preadsorption and shape selective desorption on methanol amination product distribution

    預吸附及擇形脫附對甲醇胺化產物分佈的影響
  8. Leading by professor yang weizhong, gamma knife center of neurosurgery of affiliated xiehe hospital in fujian medicine university introduced world leading operation navigation system, micro - operation system and ultrasonic operation devices, etc. selective cerebral artery tumour chemotherapy, embolism treating brain blood vessel disease were successfully applied and publicly recognized highly difficult neurosurgery operation is mastered like avm, aneurism, brain tumour, sponge tumourm, blood vessel tumour and other tumours

    福建醫科大學附屬協和醫院神經外科及伽瑪刀治療研究中心在楊衛忠教授領導下，引進了國際先進的手術導航系統顯微手術系統和超聲手術系統等先進設備。成功地應用導管技術開展超選擇性腦動脈化療顱內腫瘤介入性栓塞治療腦血管病熟練掌握神經外科公認的高難度手術如avm動脈瘤腦干腫瘤海綿竇腫瘤血管腫瘤三腦室前後部腫瘤枕大孔區腫瘤等。
  9. Selective coronary angiography in 60 cases of coronary heart disease

    選擇性冠狀動脈造影60例
  10. The enzyme 5 - enolpyuvyl - 3 - phosphoshikimic acid synthase ( epsp synthase ; ec2. 5. 1. 19 ), encoded by anoa locus, is a key enzyme present in microorganisms and plants where it has a function in the biosynthesis of aromatic amino acids. glyphosate ( n - phosphonomethyl - glycine ) is an effective non - selective, broad spectrum, postemergence herbicide, which has been shown to inhibit epsp synthase activity in a competitive manner. glyphosate tolerant plants can be mediated by either overproduction of the target enzyme or by the presence of an altered enzyme

    植物和微生物芳香族氨基酸生物合成過程中的一個關鍵酶? ? 5 -烯醇丙酮莽草酸- 3 -磷酸合成酶（ epspsynthase ； ec2 . 5 . 1 . 19 ）由aroa基因編碼，該酶受廣譜滅生性、內吸傳導型除草劑草甘膦的競爭性抑制，將epsp合成酶基因轉入植物中可獲得草甘膦耐受植株。
  11. Antibiotics are somewhat selective in their antibacterial actions.

    抗菌素的抗菌譜略有選擇性。
  12. Antibiotics produce a selective change in flora.

    抗菌素引起菌叢的選擇性變化。
  13. Recently, ldl apheresis has been applied in clinic and achieves a satisactory effect. in this dissertation, the tripeptide, serine - aspartic - glutamic acid ( sde ), which existes in the cooh - terminal end of the seven repeats in the ligand binding domain of the ldl receptor and plays an important role in identifying ldl, was synthetized and immobilized onto the polyacrylamide ( paam ) beads as a bionic adsorbent for selective removal of ldl from plasma

    本論文以絲氨酰-天冬氨酰-谷氨酸（ sde ）負電性三肽（此三肽廣泛存在於ldl受體配體結合域7個重復序列的羧基末端，對ldl受體特異性識別ldl起著重要作用）作為配體固定到聚丙烯酰胺微球載體上製成仿生性ldl親和吸附劑，考察其對人血漿中ldl及hdl的吸附功效。
  14. Therefore, the reformation of the selective and appointive mechanism of the selective and appointive mechanism of the state - owned enterprise operators has become extraordinarily important

    因此，對國有企業經營者的選拔任用機制進行改革，已成為深化國有企業改革的重中之重。
  15. Rightly based on this fact and closely surrounding the links of the selective and appointive mechanism of operators, this paper analyzes the current situation, problems and causes of the selective and appointive mechanism of the stateowned business, combines the concrete practice of the selective and appointive mechanism of operators in the developed countries, uses the relative theories and methods of modern management science and psychology, and puts forward the countermeasure of the selective and appoinitive mechanism of the stateowned operators which reflects the virtuous and talented information of operators and adpts to modern enterprise system

    本文正是立足於這一現實，緊緊圍繞經營者選拔任用機制的各個環節，通過對當前國有企業經營者選拔任用機制的現狀、問題及原因進行分析，並結合發達國家國有企業經營者選拔任用機制的具體實踐，運用現代管理學和心理學的相關理論與方法，提出能夠反映經營者德才信息並與現代企業制度相適應的國有企業經營者選拔任用機制的對策。
  16. After 30 - year reform, the state owned enterprise has already made the distinct progress in the system innovation. in contrast, the reform on the selective and appointive mechanism of the state owned business operators has lagged, which shows that the selection and appointment of most stateowned enterprise operators has still followed the way of choosing the communist and political cadres under the planned economy system, nearly the administratine duty system

    經過近30年的的改革，國有企業在制度創新方面已經取得明顯的進展，相比之下，國有企業經營者的選拔任用機制的改革是相對滯后的，表現在大部分國有企業經營者的選拔任用仍沿用計劃經濟體制下遺留下來的選拔黨政幹部的做法，即行政任命制。
  17. Bleeding site of suspected gas tric or mesenteric artery was identified by selective arteriography

    9例行急診血管造影； 27例經保守治療后擇期行血管造影。
  18. Methods selective arteriography was performed in 32 patients with trauma and suspected to be vascular injury

    方法對32例懷疑有血管損傷的患者進行選擇性動脈造影。
  19. Methods selective arteriography ( sag ) and selective artery embolism ( sae ) were applied in 51 cases of bai

    方法對51例腹部閉合性損傷進行選擇性動脈造影診斷和栓塞治療。
  20. Fast selective algorithm of intra prediction for h. 264 avc

    的快速幀內預測選擇演算法
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