有效面积

Ordinary commodity housing construction project in a specific item, a notice of land use rights transfer must be planning indicators, such as consumer demand Taoxing area as land tenure tender, auction or listing transferring lead conditions; in a contract or transfer of land use rights transfer land to the book, it must contain the above elements, to ensure that low-cost housing spaces ordinary commodity effective supply.

对普通商品住房建设项目，在发布具体项目的土地使用权出让公告中，必须把各项规划指标、套型面积等控制性要求作为土地使用权招标、拍卖或挂牌出让的前置条件；在土地使用权出让合同或划拨土地决定书中，也必须载明上述内容，以保证中低价位普通商品住房的有效供应。

Therefore, it can be safely concluded that the reason that top grafting shortening the juvenile period is mainly due to the enhancement in light energy conversion efficiency and photosynthetic efficiency.

由此可见，实生苗高接后增加了有效光合面积，提高了光能转化效率及光合作用效率，可能是高接可以缩短童期的缘故。

A surface evaporating air cooler heat exchange tube with membrane plate can improve the water membrane area and improve the evaporation heat transmission, without significant wind resistance.

带有增膜板的表面蒸发空冷器换热管束，属于表面蒸发式空冷器的组成部件，特别涉及表面蒸发空冷器换热管束，以有效扩大水膜面积，强化蒸发传热，且不明显增加风阻。

A steaming case with said energy-saving steaming pot is composed of main body with gate, said energy-saving steaming pot, burner, igniter, blower, the flange for steam box, steam releasing outlet and movable gate.

本发明增加了锅体的受热面积，不仅增大蒸汽生成量，提高蒸煮效率，而且充分利用了热源，有效降低了能量的损耗。

Yield components showed that number of effective pods per hectare was more important than 1000 seeds weight and number of seed per pod.

3随密度和施氮量增加，单位面积有效角果数呈先增后减的趋势。千粒重与施氮量关系密切，但过量施氮则降低千粒重。

The reserves of oil and gas field can be calculated by singlewell's control area, which obtains the data of effective thickness, average porosity, average original oil saturation and average oil volume factor.

利用单井控制面积可以对油气区域进行储量计算，求出整个区域的油层有效厚度、平均孔隙度、平均原始含油饱和度及平均原油体积系数等数据。

The Spirulina yield can be enhanced effectively by the increase of illuminated area, aeration rate and temperature. A higher efficiency of light utilization was observed in 500ml mini PBR than in 64 l large PBR.

增加光照面积、提高通气速率和培养温度能够有效提高螺旋藻的产量。500ml小型光反应器比64 l大型光反应器具有更高的光效。

The results showed that, when treated with ground parts degradation products, the height and leaf area of taro plants were increased; the contents of available nitrogen, available potassium, available phosphorus and soil pH value were improved; the yield of taro increased by 15.4%~23.2%, the content of Vitamin C increased by 3.6%, starch content and crude fat content increased by 8.4% and 20.0%, respetively.

结果表明：与对照相比，添加芋艿残体处理芋艿株高和叶面积都有所增加；土壤碱解氮、速效钾、有效磷含量和土壤pH均有不同程度提高；添加芋艿残体可以提高芋艿产量15.4%~23.2%，也可提高芋艿品质，其中维生素C含量提高3.6%，淀粉含量提高8.4%，粗脂肪含量提高20.0%。

This source have the advantages of high stability, high spectral radiant flux, narrow bandpass, large area, tunable wavelength in broad spectral range, etc.

这种新型的积分球光源具有稳定性好、光谱辐通量高、光谱带宽窄、光源面积大、波长在宽波段内可调谐等优点，联合响应度直接溯源于初级辐射标准低温辐射计的标准探测器，可以有效降低定标不确定度。

Through an analysis of the electromagnetic force on the electric heated rod, the authors work out the equation for calculating the electromagnetic force on unit area of the rod, and indicate that radial vibration of 100Hz will occur when the rod is in operation, which have little effect on the strength and sealing of the rod owing to minor amplitude.

电热杆的交流阻抗远大于导线的电阻，因此主要发热体为抽油杆，可快速有效地加热杆外的原油，而导线不会过热，有利于导线的绝缘与保护。通过对电热杆所受电磁力的分析，推导出了抽油杆内表面单位面积上所受电磁力的计算公式，从而得知电热杆工作时将产生沿径向向外的径向振动，振动频率为100Hz。但由于振幅较小，这种振动不会对抽油杆的强度和密封产生明显的不利影响。

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。