optimum yield 中文意思是什麼

optimum yield 解釋
適當的產量
  • optimum : n. (pl. optimums, -ma ) 【主、生】(成長繁殖等的)最適條件,最適度。adj. 最適宜的。 the optimum temperature 最適溫度。
  • yield : vt 1 生出,產生(作物、報酬、利益等)。2 給與,讓與;讓渡;放棄(權利、地位等);交出。3 承認。4 ...
  1. Based on visual rice growth models ( vrgm ) and the techniques of " vigorous root - strong culm - heavy panicle ", " once - for - all basal application " etc, rice expert system of cultivation management for high yield has functions of inquiry, optimum decision on agronomy measures, cultivation management decision, diagnosis and control of physiological problems, disease and insect pests

    該系統以可視水稻生長模型系統為基礎,以水稻「旺壯重」栽培技術、一次性全層施肥技術、水稻全程化控工程等研究成果為知識中心,試圖覆蓋水稻全部栽培過程和方式,為水稻栽培管理決策提供優化方案。
  2. The model of variability of submergence depth is established based on the law of volume balance, and the changing trends of parameters like submergence depth etc are analyzed. according to the principle of supply and discharge balance, the method to predict oil yield is presented. subject to different objective functions, the corresponding optimum combinations of suction parameters are analyzed, and the importance of choosing objective function to optimum combination of suction parameters is emphasized

    本文研究了油井流入動態關系,根據井筒內液量平衡原理,建立了沉沒度變化的數學模型,分析了沉沒度等參數變化規律;根據油井供、排平衡原則,得出了抽油泵排量系數相對穩定狀態下產量預測的關系;分析了不同目標函數下,油井抽汲參數的組合效果,指出了目標函數選取對參數合理組合的重要性。
  3. Based on 2 - d - optimum orthogonal design field experiment in the jointing - heading period of phleum pratense l., the results show that potassium content is the most productive on the seed yield, phosphorus comes next and nitrogen the least

    摘要採用二因素d -飽和最優設計,通過貓尾草拔節抽穗期的根氮、磷、鉀和莖葉氮、磷、鉀的含量對其種子產量和產量因子進行灰關聯熵分析。
  4. An optimum planting density must be employed to get a high yield, depending upon soil condition, varietal tillering ability, fertilizer level, number of plants per hill, and planting season

    獲得高產必須採用最適植株密度,視土壤條件、品種分蘗力、肥力水平、每蔸苗數和播種季節而定。
  5. Using plots with water and fertilizer fully controlled, the effect of photosynthetic characteristic and yield under different treatments of water and fertilizer coupling was investigated. the result showed that photosynthetic rates are different among treatments of water and fertilizer coupling, and the change of stomatal conductivity is the same as photosynthetic rat. there is almost no influence on evaporation rate and cellular co2 concentration the combination of fertilizer and manure under natural rainfall is beneficial to the maintenance of photosynthetic rate during grain filling, thus results in highter yield and good quality. however, the coupling of fertilizer and manure with sufficient water results in the decline of photosynthetic rate and stomatal conductivity, the yield decreased indicating there has a balance ratio between water and nutrients ( fertilizer and manure ) supply. the study proposed that the optimum management to exploring yield and qlality potential is the combination of fertilizer and manure application with no irrigation

    利用可精確控制水分條件的水肥平衡場,在不同水肥耦合處理的條件下,研究了水肥耦合對玉米光合特性及產量的影響,結果表明:不同水肥耦合處理的條件下,玉米的光合速率有所不同,氣孔導度的變化與光合速率的變化表現基本一致,而對蒸騰速率、細胞間co2濃度影響不大.其中,在自然降水條件下,有機肥和無機肥的配合,有利於玉米子粒灌漿期維持較高的光合速率,表現出良好的產量潛力.充足水條件下,有機肥和無機肥的配合,光合速率及氣孔導度表現較低,表現產量有所下降,說明供水量與施肥量之間有一個平衡系數.表明黑龍江省北部黑土區自然生態條件下,為充分發揮玉米的產量潛力,最佳的管理措施是增施無機肥和有機肥的配合
  6. In the study of m. purpureus, the optimum conditions for its medium composition and culitivation were discussed. high density fermentation was carried out and the mycelium yield reached to 4. 09g / l, which is about two times higher than the data of 2. 18g / l reported in literature

    在紅麴黴的研究中,我們進行了紅麴黴的培養基和培養條件的優化實驗,並根據該實驗結果進行了高密度發酵,最終紅麴黴菌絲體的含量達到了4 . 09g l ,比我們所看到的2 . 18g l高出近一倍。
  7. Aiming at the present low efficiency of well irrigation works and through pumping tests and theoretical analysis, the paper derives a method for calculating the optimum water yield, the best lifting distance and economic pipe diameter of low pressure pipe delivery system of irrigated area by wells, increasing the efficiency of motor - pumped wells

    針對目前井灌工程效率低下的問題,通過抽水試驗,經過理論分析,推導出了井灌低壓管道輸水灌溉系統的最優出水量、最佳揚程和經濟管徑計算方法,從而可提高機井灌溉效率。
  8. Under the optimum reaction conditions, the yield of benzyl propionate could reach 87. 9 %

    在最佳反應條件下,丙酸芐酯的收率可達87 . 9 % 。
  9. The results of experiments and investigations in many years showed that in the semi - damp soil, the output had been increased by 69. 2 % when the former is used to guide the optimum sowing time for the plastic - film corn, and in the semi - arid area and the yield of corn increased by 60. 0 % when the latter was used, for, when used, the output will increase only by 15. 7 % and dropped by 14. 4 % less than the latter

    經多年的試驗和調查表明,在半濕潤生態類型區,應用「增溫說」指導地膜玉米最佳播期增產69 . 2 % ;在半乾旱地區,應用「調水說」指導地膜玉米最佳播期增產60 . 0 % ,而應用「增溫說」播期只增產15 . 7 % ,比「調水說」播期減產14 . 4 % 。
  10. Snailase and lysozyme. the protoplast yield of t - 730 and ni - 5k was 3. 2 + 107 / ml and 3. 8 + 106 / ml under the optimum conditions

    以t - 730 、 ni - 5k菌株為親本,採用混合酶液處理兩親本菌株的營養菌絲,獲得原生質體。
  11. This paper solved the optimum installed angle anchor bar in anchored joint by considering the shear dilatatility of joint and utlizing the mises yield criterion

    本文根據基本理論分析,考慮節理的剪脹效應並利用mises屈服準則求解得出了加錨節理面抗剪的最優安裝角。
  12. Many study in theory and experment about the capability of shear - reist of anchored jiont have been done, but many study in theory did n ' t consider the influence of shear dilatatility of joints and has some problem when utlizing the mises yield criterion, in addition, there is n ' t accordant opinion about the optimum shear - resist installed angle at present

    錨桿在節理處的抗剪性能,理論和實驗研究做的比較多,但許多理論研究沒有考慮節理的剪脹效應或者在對錨桿應用mises屈服準則的時候存在一些問題。關于錨桿抗剪的最優安裝角目前也尚未有統一的定論。
  13. Under the optimum preparation conditions, the particle dimension of the resultant vo2 synthesized is 0. 5 m, the yield is more than 90 % and the purity is 99 %

    在最佳合成條件下,所得產物vo _ 2的晶粒尺寸在15 . 2nm左右,收率達90以上,純度為99 。
  14. The mutant pel - d92l was expressed in pichia pastoris gs115, sds - page detection showed that the expression product pel - d92l - gs is different from pel - gs, and its " yield decreased dramatically, the themostability of pel - d92l - gs is also different from the pel - gs, but their optimum temperatures are same. 3. directed evolution of pel through random mutagenesis mutagenesis pcr carried out in error - prone conditions was used on the vector psk - pel, using the oligos " beginning " and " end ", homologous to the 5 ' and to the 3 " ends of the gene of pel respectively

    三、 pel基因的隨機誘變用易錯pcr方法對pel基因進行隨機誘變, pcr產物與ppic3 . 5k連接,轉化大腸桿菌,獲得的混合質粒電轉化畢赤酵母gs115 , omm平板篩選適于低溫或對熱穩定的重組子,篩選獲得一株最活反應溫度、熱穩定性、發酵酶活均有提高的突變體pel - ep5 - gs ,其最活反應溫度為45 ,比野生型高出5 ; 40處理30min殘留活性為56 ,大大高於野生型的6 ;初始ph7 . 3528條件下培養72h ,發酵上清酶活為325u / ml 。
  15. Lastly, use the model of optimum sustainable yield to realize the environmental protection of sustainable tourism in tourism vacation belt around city of jinan city

    第四,運用旅遊開發最佳可持續產量的經濟模型實現濟南市環城市旅遊度假帶可持續旅遊的環境保護。
  16. Optimum water strategy could solve the conflict between high yield and environmental protection

    因此在合理灌溉的基礎上進行氮素推薦,可有效地解決蔬菜生產中產量與環境之間的矛盾。
  17. The influence of reaction conditions on the yield were investigated and optimum experimental conditions were foud

    研究了各種不同反應條件對產率的影響,探索出了最佳合成條件。
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