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The results showed :the soil of tailing abandoned land was mainly consisted of the sandy powder , it happened to plash in the raining day for the poor ventilation and infiltrative coefficient .

结果表明:尾矿废弃地土壤以砂粉土为主,通气透水性能差,渗透系数小,易造成地面积水;矿渣废弃地渗透系数大,蓄水量少而蒸发失水强,抗旱力弱。

Aiming at the key issue of PVA fiber industry, this paper focuses on the realization of PVA melt spinning through intermolecular complexation and plasticization, and studies its mechanism. According to the supermolecular

研究了改性体系的氢键复合结构,改性体系中水的蒸发行为,改性剂对PVA热性能、结晶结构及非等温结晶性能的影响,PVA熔纺初生纤维的结构与性能及纤维拉伸过程中的结构形成,为在加工过程中控

A few epidermal hairs distributed on the Costa of Lonicera Japonica Thumb. The upper epidermis of Solidago decurrens Lour were covered with sparse stellate hairs. The stomas distributed on the upper epidermis hairs of Lonicera Japonica Thunb, Lonicera confuse and Solidago decurrens Lour, which could reflect the sunlight and decrease the transpiration to adapt the highlight and drought environment;(2) The leaf blades of Polygala japonica butt were fleshy, and the sunk stomas distributed on both the sunk place of the upper epidermis and lower epidermis, which help to water conservation.

结果:(1)忍冬、华南忍冬、黄花草下表皮均分布浓密的表皮毛,忍冬上表面中脉有少量表皮毛,黄花草上表皮分布有稀疏的星状表皮毛,忍冬、华南忍冬和黄花草的气孔位于下表皮毛间隙,这种结构可反射阳光和阻止水分蒸发,从而适应强光和水分不足的环境;(2)瓜子金叶片为肉质叶,上下表面均有气孔分布,并出现明显的下陷。

There is a symmetric sedimentary rhythm with a polyhalite center in this deposit,formed by the cogenetic metasomasis of relic concentrate d brine with gypsum in shallow basin of the gypsum flat environment above tidal level and the evaporation sedimentation of the mixture of gypsum flat drainage water with rilic concentrate brine.

矿床具有以杂卤石矿为中心的对称沉积韵律,一方面是潮上膏坪环境浅水盆地中的残余浓缩卤水与石膏发生同生交代作用形成,另一方面又是膏坪汇流水与残余浓缩卤水混合蒸发沉积而成。

This research discovered that soil pondage of level terrace were less than fallow sloping filed because of crops' absorbing and using, and evaporation.

发现由于作物对梯田土壤水分的吸收利用,以及蒸发散的原因,导致水平梯田的土壤贮水量比休闲坡地小。

Based on the water and fertilizer coupling experiment in corn field,one-dimensional soil moisture content model containing the water uptake corn roots is used in this paper to simulate the evapotranspiration and the water uptake of corn roots and the change of soil pondage and soil moisture budget under the different water and fertilizer coupling conditions in corn field.

结果表明:在玉米生长初期以棵间蒸发为主,其后则是以植株蒸腾为主;玉米在30~40 cm土层吸水速率达到最大值;玉米灌水量为田间持水量的70%与85%对土壤0~80 cm土层贮水量的贡献是相等的,并且高肥力在一定程度上可增强根系的吸水能力,高灌水可增强玉米根系对养分的吸收利用,但对于提高水肥利用率来说,理想的处理为中肥中水。

In different growth stage, the soil pondage of R, H and Z treatments was larger than C, especially in anthesis stage, which indicated that R, H and Z could inhibit the useless evaporation of soil water before anthesis and promote grain filling. Different tillage systems had different Effects on soil pondage.

在作物不同生育时期,尤其是作物开花期,旋耕、耙耕和免耕模式的土壤贮水量高于常规耕作处理,这说明这三种模式可抑制作物开花前土壤无效蒸发,有利于促进籽粒灌浆。

According to the analysis on the solubility data of the K2CO3-K2CrO4-H2O system, evaporating crystallization is a key step to separate potassium chromate from potassium carbonate solution.

据K2CrO4-K2CO3-H2O体系溶解度分析,蒸发结晶是该分离过程控制的关键,对此进行了详细的相图分析。

It focuses on analyzing the two key equipments: evaporation cooler and electrostatic precipitator.

在此基础上着重分析了煤气干法处理系统的关键设备:蒸发冷却器和电除尘。

This essay analyzes the method and procedure of ice-making recorded in Huai Nan Wan Bi Shu, and creatively proposes that the principle of "ice-making in summer" is refrigeration through the quick evaporation of water to absorb heat under low pressure, and that ice is made on the fine silk at the mouth of an urn, but not inside the urn at its bottom as it was conventionally thought. The essay points out three necessary conditions which should be fulfilled in order to realize "making ice in summer": low relative humidity (less than 26%), large volume of the urn (about 100 L) and proper air temperature (about 20℃).

分析《淮南万毕术》所载制冰方法和过程,提出低压下水快速蒸发吸热制冷是"夏造冰"的制冰原理;结冰的部位不是传统观点所认为的瓮底,而是在瓮口的嫌上;指出要实现"夏造冰",需满足三个条件:相对湿度低(低于26%)、瓮的容积大(100升左右)、空气的温度适当(20℃左右)。

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推荐网络例句

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。