查询词典 efficiencies

In the first part, the thesis firstly constructs the production possibility sets deduced from constant, nonincreasing, nondecreasing and nondetermined returns to scale. Based on the above point, the thesis systematically deduces the models of DEA which evaluate production efficiency for exogenously fixed inputs and the models of ADEA (Allocative Data Envelopement Analysis) which evaluate cost, revenue, profit efficiencies and allocation efficiency in production possibility sets, and then discusses the solution properties of these mathematics models.

在第一部分中，首先以生产规模收益率不变、非增、非减和不确定四种情形下的生产可能集的构成为出发点，系统地归纳出在这四种生产可能集上评价具有固定不变输入或输出生产有效性的DEA模型及其相应情形下评价生产成本、收入、利润和生产配置有效性的ADEA模型，并讨论了这些数学规划模型解的性质。

N absorption and utilization efficiencies of summer maize were affected by type of N fertilizers. NUE and NUPE in CU and CF treatments were higher than those in U treatments. NHI in U treatments was generally higher, but the effects of cultivar, year and N rate were all significant.

氮肥类型影响夏玉米氮素吸收与利用效率，NUE、NUPE以包膜尿素和复合肥处理较大，而NPE和NUTE以尿素处理较高，但差异不达显著水平；NHI一般以尿素处理较高，其差异显著性存在品种间、年际间及施氮水平间差异。

The upshot is that this election's obsequies for the era of free stuff will be mostly euphemistic, relying on the weaselly vocabulary of "tough choices","efficiencies" and "transparency" rather than gritty specifics.

其结果是，本次大选作为免费项目时代的终结，将以各种花哨的词，诸如"艰难抉择"、"效率"、"透明度"等词以显得婉转，而非用细化直白的措词。

Extraction of the essential oil and oleoresin from garlic with supercritical carbon dioxide was studied. The effects of grind degrees, pressur e, temperature and time on extraction efficiencies were investigated.

研究了大蒜精油及油树脂的超临界CO2提取工艺，探讨了粒度，萃取及分离的温度、压力和时间对各萃取率的影响，建立了萃取温度、压力与各萃取率的数学模型。

Yet in public, at least, Mr Cameron is thinking more in terms of penny-pinching efficiencies than about structural reform.

但卡梅伦一味在细节问题上锱铢必较，没有着眼于整体结构改革。

Five effective techniques were identified to improve the industry including producing controlled release fertilizers and phosphor recover from rural latrines and city sewage to improve the utilization and cycle efficiency of the phosphor industry.Quantitative indices such as cycle efficiencies and flow path lengths were calculated for these schemes.

总结磷元素高效循环利用的技术手段和措施，提出生产智能控缓释化肥、减少含磷农药使用量、减少含磷洗涤剂使用量、回收人畜粪便生产有机肥料和回收污水中的磷等措施构成6个不同方案改善该系统的物质利用水平，并对元素循环效率等指标进行分析比较。

The rate constants and efficiencies of photolysis for PAHs were not related to the original concentration of An and Ch.

对蒽和光解速率的比较分析表明，多环芳烃光解速率常数与受光解物质的结构特性有关。

The main results are as follows.1. The UV-visible absorption spectra, the spin-trapping EPR measurements, and the DPA (9,10-diphenylanthracene) bleaching experiments showed that (1) HB-Net exhibits much improved light harvesting efficiency in the phototherapeutic window (600-900 nm) as the result of its remarkable absorption red shift with respect to HB;(2) HB-Net remains the generation abilities of semiquinone anion radical, superoxide anion radical, hydroxyl radical, and singlet oxygen, but with much lower efficiencies than that of HB, most likely due to its very short triplet excited state lifetime.

设计合成了寡聚吡咯酰胺修饰的竹红菌乙素衍生物HB-Net，利用紫外-可见吸收光谱、自旋捕获技术和DPA光漂白法详尽比较了HB-Net与HB的光动力性质，发现：(1) HB-Net的吸收光谱较HB有显著红移，在光疗窗口的吸光能力明显提高；(2) HB-Net能够产生半醌负离子自由基、超氧负离子自由基、羟基自由基和单重态氧，但由于其短的三重态寿命，这些活性物种的产生能力均弱于HB.2。

Working closely with the plant manager, improve the company's manufacturing efficiencies and safety performance.

和工厂经理密切合作，改善公司的制造效率和安全情况。

The results show that some porphyrin compounds are extractedto the top phase with extraction efficiencies higher thah 90%.

结果显示，该双水相体系对某些的一次萃取率可在90%以上。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。