有效面积

According to I2C and USB electrical Specification the performance specifications of transceiver are defined.

重点优化设计与实现了各个电路模块，不但保证了电路的性能，而且有效地减小了芯片面积。

Note that for practical reasons the standard mould unit manufacturers space he support blocks relatively wide apart in order to encompsss the greatest effective ejection area.

注意，从实用的角度考虑，标准模架的生产商把支撑块的距离设置得较大，从而可以获得最大的有效顶料面积。

The effective heat-transfer temperature difference of every effect of multi-effect evaporation subsystem and the preheat temperature rise Δt_(p,j of every level of multi-level preheat subsystem of the design model were distributed by equal heating area, equal heat-transfer temperature difference, and free proration methods.

设计型模型对多效蒸发子系统各效有效传热温差Δt_i的分配和多级预热子系统各级预热温升Δt_的分配分别采用等面积法、等温差法、自由配比法等进行分配并采用矩阵法结合迭代法进行设计模拟计算，其中自由配比法巧妙地将具有复杂约束条件的决策变量Δt_i和Δt_转化为取值0～1的中间决策变量τ_i、τ_，为Δt_i和Δt_的自由搜索进而为优化设计提供了一个简便的方法；在常规设计模拟计算的基础上，建立了复杂多效蒸发系统优化设计模型，该模型以系统年总费用最小为优化目标，以生蒸汽温度T_0、冷凝器中二次蒸汽温度T_K、蒸发温差配比系数τ_i和预热温升配比系数τ_为决策变量，采用遗传算法结合矩阵法求解。

It is found that the validity of modal series method and linear modal method is not influenced by the second-order resonance condition, which has a great influence on normal form method. When the operating condition is near the second-order resonance condition, the valid area of normal form method is quite small.

发现模态级数法和线性模式分析法的有效性均不受系统共振的影响，而正规形法的有效性受系统共振情况的影响较大，在系统的2阶共振点附近，其有效域面积较小。

Correlation analysis showed that meteorological variables, such as containing water rate of sandland, photosynthetic available radiation, air temperature, saturated water vapour pressure difference, and physiological variables, such as leaf area index, leaf temperature, stomatal conductance, affected transpiration of S.

相关分析结果表明，环境因子，如沙地含水率、太阳有效辐射、大气温度和饱和水汽压差，以及植物因素，如叶面积指数、叶片温度和气孔导度等，均能显著影响沙柳的蒸腾作用。

Objective: 1 Measured and statisticsed areas of cross section and CT value of scalene anterior muscle on plan from superior border of C6 to C7, as a objective basement of this topic and other correspond research; 2 Compared and analysed changes between normal and patient, established diagnosis criterion on image and explored new research methods of soft tissues by image; 3 Confirmed maneuver and functional exercise are utility methods.

目的：1测定C_6上缘-C_7上缘水平前斜角肌模断面面积及CT值的正常值，作为本课题及相关研究的客观依据；2比较分析前斜角肌综合征患者与无症状者前斜角肌变化，确立该征的影像学诊断标准，初步探索软组织影像学的研究方法；3进一步确定手法配合功能锻炼是治疗该征的有效疗法。

Experiment and data analysis illustrate that, with the image resolution being 600dpi, the seed can be separated firstly if only solidity and area are 0.95 and 7000 pixels respectively, then the peduncle can be separated with the eccentricity being 0.9, the fruit coat closing and seedcase can be separated finally if the solidity and eccentricity are 0.8964 and 0.5072 respectively.

试验和数据分析表明，图像分辨率为600dpi时，取凹性率0.95、面积值7000像素可先分离出椒籽，再取椭圆度0.9能分离出果穗梗，最后取凹性率0.8964、椭圆度0.5072能有效区分余下的闭眼和果皮。

Assuming that half of the carbon loss in the degraded terrestrial ecosystem in current forest and grass areas are restored during the next 50 years or so, the terrestrial ecosystem in China may sequestrate～12.0Pg of organic carbon from the atmosphere, which represents a considerable offset to the industry's CO〓 emission.

5在现有的气候条件下，未来50年或更长的时间上，如果我们能通过有效的土地利用措施使我国现有林地和草地面积上的生态系统碳损失量恢复其中的1/2，那么我国陆地生态系统将具有～12.0Pg C的碳汇潜力。

By separating the singular parts from surface integrals and developing an effective algorithm for solving rapid oscillatory multiple integrals, all the difficulties encountered in practical compuation were overcame.

通过分离面积分中的奇异性成分以及发展针对快速振荡的多重积分的有效算法，克服了积分核的实际计算中的困难。

As a result of Spica business card printing and membership card making the design and compact, and small footprint, so it can most effectively for the business card printing and membership card making enterprise save space.

由于Spica 制卡和会员卡制作机的设计结构紧凑、且占地面积小，所以能够最有效地为制卡和会员卡制作企业节省空间。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。