cover test 中文意思是什麼

cover test 解釋
掩蔽試驗
  • cover : vt 1 覆蓋,遮蔽,包裹;戴帽子;包庇,隱蔽,掩蓋;滅跡,(用紙)表(墻)。2 孵(小雞);(種馬)交...
  • test : n 1 檢驗,檢查;考查;測驗;考試;考驗。2 檢驗用品;試金石;【化學】試藥;(判斷的)標準。3 【化...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. Surfaces for sports areas - method of test - determination of ground cover of natural turf

    運動場表面.試驗方法.天然草皮地面覆蓋度測定
  3. [ color = blue ] [ size = 2 ] sgs hardgoods lab guangzhou has set up series juvenile product safety and mechanism test for our client, our capacity cover eu, usa and as requirement

    Sgs廣州輕工產品實驗室設立嬰幼兒系列產品的物理機械安全測試,我們的能力包括歐洲,美國及澳大利亞的要求
  4. Flexibility and hosing test for small water tight hatch cover ( water tight door and window )

    水密小艙口蓋(水密門、窗)啟閉靈活性、沖水檢查。
  5. Standardized exam papers cover a wider range of knowledge and test students ' ability

    標準化試卷覆蓋的知識面廣,而且測試學生的能力
  6. Quality requirements and test methods for post - press finishing. quality requirements and test methods for hard - cover bookblocks

    印后加工質量要求及檢驗方法.精裝書芯質量要求及檢驗方法
  7. All wetted valve components - test cocks, ball valve shutoffs, pipe nipples, body and cover, and check modules are made from " lead free " stainless steel or plastic construction

    全焊接閥門部件-測試旋塞,球閥關閉閥,管螺紋接套,閥體和閥蓋,以及止回閥模塊都採用「無鉛」不銹鋼或塑料結構。
  8. Steel cord conveyor belts. adhesion strength test of the cover to the core layer

    鋼繩傳送帶.帶面到繩層的附著強度試驗
  9. Aerospace series - elements of electrical and optical connection - test methods - part 427 : robustness of protective cover attachment

    航空航天系列.光電連接件.試驗方法.第427部分:護層附件堅固性
  10. The test research continuous two years, carry out land membrane cover, the ambient conditions that can improve garlic growth growth, raises winter spring soil temperature, maintenance has moist soil, loose, reduce moisture to evaporate run off, it is good to promote garlic to make sprout early, growth better, and take out moss early, raise output and quality, promote garlic to increase production and receipt

    摘要經過連續兩年的試驗研究,實行地膜覆蓋,可以改善大蒜生長發育的環境條件,提高冬春季土壤溫度,保持土壤濕潤、疏鬆,減少水分蒸發流失,可以促進大蒜早出苗、齊苗、長勢好、早抽苔,提高產量和質量,促進大蒜增產增收。
  11. Secondly, based on the theoretical analysis of the chosen anti - slipping scheme, anti - slipping stress test, strength test of sealed - cover concrete, anti - floating test of cofferdam, stress test of supporting pile and stress test of stability are processed respectively, which proves that the new scheme presented in this paper is feasible

    然後對選定的抗滑方案進行理論分析,分別進行抗滑受力檢算、封底混凝土強度檢算、鋼圍堰抗浮檢算、支樁受力檢算和穩定受力檢算,從理論上驗證本方案的可行性。
  12. The bypass line double check valve shall have a single access cover, two independently operating modular poppet check valves, and top mounted test cocks

    旁路管線雙止回閥應該具有一個檢修蓋,兩個獨立工作的運行模塊化提升式止回閥,以及頂部安裝測試旋塞。
  13. Full - range of loading to the reinforced concrete columns with reinforced concrete cover during second stage of loading is analyzed by computer - test nonlinear developed in the text, in consideration of the condition that they are not unloaded or partly unloaded. based on the analysis, a simplified method is put forward in the paper to calculate the load capacity of cross - section of axially and eccentrically compressive rc columns with reinforced concrete cover. a theoretical calculation method is given to the practical engineering

    本文針對實際工程中經常採用的外包鋼筋混凝土加固鋼筋混凝土柱的加固方法,考慮到實際加固工程是在不卸載或部分卸載情況下進行,利用計算機對外包鋼筋混凝土加固柱二次受力后進行非線性全過程分析,在此基礎上提出外包鋼筋混凝土加固柱軸心受壓和偏心受壓正截面承載力的簡化計算公式,為實際工程中外包鋼筋混凝土加固柱的結構設計提供了理論計算方法。
  14. During program development, the test suite is becoming more and more larger. retest all test case is impossible. how to select the effecitive test case to cover the changes and change impacts is research focus

    軟體不斷地改進和發展導致其測試用例庫越來越大,採用重測所有測試用例的回歸測試策略變得不現實,因此如何選擇有效的測試用例使之能夠覆蓋修改和修改影響的部分成為研究的重點。
  15. With the most modern cad / cmd systems and the necessary test equipment and test facilities, we cover the complete process chain from the design and validation of prototypes to the modern production of gas springs

    我們擁有最現代的cad / cmd系統和必需的測試設備和工具,可以覆蓋從設計和原型確認到氣壓彈簧的現代化生產的所有處理環節。
  16. Standard test methods for water vapor retarders used in contact with earth under concrete slabs, on walls, or as ground cover

    混凝土板墻或土壤覆層的與地面接觸的水氣隔層的標準試驗方法
  17. In practical application, the m10 180 bolts, which are installed in the head cover of the torque divider of ts5560 special automobile, sometimes fracture all of a sudden. according to the tests of acceleration, stress and strain, and the exciting test, it is resonance vibration that leads to the compound - bending fatigue fracture of the bolts. the exciting force caused by drive system, transmitted through the torque divider, produces a 1000 - 1500hz cyclical excitation at the junction of the bolts and head cover, which causes the first order bending resonance vibration of the bolts

    通過加速度、應力應變測試實驗和激振試驗的研究,發現ts5560特種車分動器取力器氣缸端蓋m10 180螺栓斷裂問題是由於共振引起的雙向彎曲疲勞斷裂:傳動系統工作所產生的激勵,經過分動器結構的傳遞(特別是分動器一階扭轉模態的放大) ,在螺栓的連接處產生1000 1500hz的振動激勵,其導致螺栓一階彎曲共振,在螺栓一階彎曲模態的阻尼比較小的情況下,使得螺栓產生較大的共振響應,導致螺紋處的彎曲動應力較大,疲勞壽命較低。
  18. In an early test of this, our beijing correspondent has been investigating one outrageous cover - up : over the fate of the tens of thousands infected with hiv / aids during a botched blood - collection drive ( see article ) in henan province

    算是該項規定效果的前期測試,我們駐在北京的記者開始著手調查一項令人發指的瞞報事件:關乎河南省好幾萬人的命運,他們在不正規的采血過程中感染了艾滋病毒。
  19. Interest cover test

    利息保障倍數測試
  20. After a comparative studying and analyzing three effective strategies for generating pair - cover test set by means of pcg, csg and a series of sample systems " experiments, we present an improved algorithm, which has a rule for ordering parameters extension and also solves constraint parameters problem

    本文還研究和分析了目前已有的三種有效的配對覆蓋測試集生成策略,並利用pcg圖和csg圖分析了它們各自的擴展演算法,還通過一組測試樣本系統綜合分析和比較了它們各自的效果。
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