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As the representative of the northern Loess Plateau gully region, the soil quality under different cultivation length of the orchard in Changwu county was studied. Using partial correlation coefficient to determine the weight, combined with evaluation of membership Sanction to evaluate soil quality levels of the area, the trend of orchard soil quality under different cultivation years was analyzed. The results showed that the IFI values of orchard soil were between 0.22 and 0.70, 27% of them reached the second soil quality standards, 64% reached a third-level soil quality standards, 9% met the fourth standards of soil quality.

以长武北部黄土高原沟壑区为代表，研究了不同果园种植年限下的土壤质量现状，运用偏相关系数法确定权重，结合隶属度函数评价了该地区土壤的综合肥力水平，分析果树种植中土壤质量随着种植年限的变化趋势，结果表明：黄土沟壑区果园土壤IFI值在0.22~0.70，其中有27%达到了2级土壤质量标准，64%达到了3级土壤质量标准，9%达到了4级土壤质量标准。

Processing efficiency as a result of cutting-axis achieve the revitalization of planning released the equipment manufacturing industry to adjust exhaust turbocharger atc common faults and exclusion of high-speed cutting edge technology used in the blanking die in and outside the ring of rolling bearing fault diagnosis methods of the term commonly used brief summary of metal material factor in the quality of process performance aluminum water purification technology gap separating sub-micron technology the basic principles of rotary broaching the installation of the basic principles of positioning technology in the context of the characteristics of the engine crankshaft camshaft grinding high-speed implementation of the project highlights the emergence of diagnostic bearing cage diagnostic system 10 cases of preventive measures hardening die steel crack analysis of elastic deformation of the analysis error δφ maintenance and repair pneumatic tools processing tools prismatic conical shape when the surface of the workpiece form error ina sets of cylindrical sliding zgb200x220x180 ina sets of cylindrical sliding cylinder zgb180x200x180 ina zgb160x180x150 ina sets of cylindrical sliding sliding sliding cylinder zgb140x155x150 ina sets zgb120x135x120 ina sets of sets of cylindrical sliding zgb110x125x100 ina sets zgb100x115x100 ina cylindrical cylindrical sliding sliding sliding cylinder zgb90x105x80 ina sets zgb80x90x80 ina sets of sets of cylindrical sliding zgb70x80x70 cnc machine tools in general the structure of the spindle drive motor and the use of the exchange servo motor,the dc converter or to eliminate brush maintenance and high-speed electrical and mechanical constraints,through the belt driving the movement to the spindle,so that the spindle reaches a certain speed to achieve the stepless speed regulation,and consistent use of the speed signal converter to confirm the speed of the motor to achieve the directive,and then cutting into the knife,resulting in improved efficiency

摘 要：由于加工切削效率轴达到实习心得振兴数控机床实习心得发布装备制造业调整废气涡轮增压器常见故障及排除换刀高速切削技术的优势在冲裁模中废旧滚动轴承内外环设备故障诊断常用简易方法名词简介金属材料工艺性能铝材质量因素净化水处理技术空白亚微米分离技术回转拉削基本原理定位安装的基本原则特征技术产生的背景发动机曲轴凸轮轴的高速磨削加工五轴机实施中数控机床实习心得涌现诊断轴承保持架诊断系统预防措施10例模具钢淬火裂纹分析弹性变形误差δφ的分析维护及保养气动工具棱体成形车刀加工圆锥面工件时产生的形状误差 ina 圆柱滑动套 zgb200x五轴机x180 ina 圆柱滑动套数控机床实习心得180x200x180 ina 圆柱滑动套 zgb160x机床实习心得x150 ina 圆柱滑动套 zgb数控机床实习心得x155x150 ina 圆柱滑动套 zgb120x135x120 ina 圆柱滑动套 zgb110x125x100 ina 圆柱滑动套 zgb100x115x100 ina 圆柱滑动套 zgb90x105x80 ina 圆柱滑动套 zgb80x实习心得x80 ina 圆柱滑动套 zgb70x80x70 数控机床的主轴机床信息交流网结构一般采用交流电机和伺服电机，采用变频器或以消除直流电机电刷维护和高速限制，通过带传动把运动传给主轴，进而使主轴达到一定的转速来实现无级调速，同时利用变频器的速度一致信号来确认电动机达到了指令速度后，再进刀切削加工，从而提高了效率

Through X-ray photoemission spectrum, the binding of 516.4 and 523.1 eV can he attributed to the V(superscript 4+ subscript 2p3/2) and V(superscript 4+ subscript 2p1/2),, which confirm the quadrivalent slate of V ion in Li0.8V0.8O2. With a current density of 7.4 mA/g, the charge capacity of Li0.86V0.8O2 is 163 mAh/g in the first cycle, and the first discharge capacity of the materials is 113 mAh/g. After 20th cycles, the discharge capacity is still 80 mAh/g, which show good electrochemicalstbility.

在电流密度为7.4mA/g的充放电中，Li0.86v0.8O2初始充电容量达到163mAh/g，首次放电容量也能达到113mAh/g，20次循环后放电容量仍然可以达到80mAh/g，表现出较好的循环性能。

The result indicated that, This variety resistance is strong, The sowing time meets arid long clearly does not have the rain the weather, The soil field capacity is 43.5%(normal soil field capacity 60%), the rain water is insufficient, Rate of seedlings emergence above 85%, Basically achieves seedling is much longer and stronger; Jointing later period trumpet-shaped object stage, Meets the continuous and incessant rains little clear climate, Suffers the water logging disaster, Soil field capacity reaches above 85%, Partial is low-lying place is flooded, But the corn growth is normal, Ye Sachem is green, The root system is developed, Has not discovered the rotten root phenomenon; Is pulling out, the spinning, the pollination stage male, Bitter experience hot summer crop damage and storm disaster, The corn normally pulls out the male spinning pollination to busload.

结果表明：该品种抗逆性较强，播种期遇干旱久晴无雨的天气，土壤田间持水量为43.5%（正常土壤田间持水量60%）、雨水不足，出苗率在85%以上，基本达到苗齐、苗壮；拔节后期喇叭口阶段，遇到久雨少晴气候，遭受水涝灾害，土壤田间持水量达85%以上，部分低洼处被水淹，而玉米生长正常，叶色深绿，根系发达，未发现烂根现象；在抽雄、吐丝、授粉阶段，遭遇伏旱及暴风雨灾害，玉米正常抽雄吐丝授粉结实，产量未造成较大影响，基本上达到常年稳产，每公项达到8400kg以上。

When the ratio of MPB binder to sand is 1∶1.5, the MPB mortar reaches the highest strength, with compressive strength beyond 50 MPa and flexural strength more than 9.1 MPa at 3 hours.

灰砂比w(MPB∶w为1∶1.5时，砂浆强度达到最高值，3 h抗压强度达到50 MPa，抗折强度达到9.1 MPa。

When he has developed to the stage where he has clear self-awareness and self-controlling ability, he can decide his own development purposefully and self-consciously, that is, he has been provided with life self-consciousness, which means a high level of man's spirit.

当人的发展水平达到具有清晰的自我意识和达到自我控制的水平时，人能有目的地、自觉地影响自己的发展，即个体具备了生命自觉。"生命自觉"是人的精神世界能量可达到的一种高级水平。

The results show that the amorphous PLGA fiber with porous structure (0.1-1.0 μm) is obtained by diluted solvent spinning method and the mechanical properties is affected by pressure and temperature. Bending strength and shearing strength of the samples increase firstly and then decrease with the increase of molding temperature and pressure. While the molding temperature is 160℃and the pressure is 105MPa, the PLGA materials possess optimal mechanical properties, bending strength, shearing strength and bending modulus 187.3 MPa, 100.0 MPa and 2.5 GPa, respectively. The mild temperature molding PLGA materials are desired to play a grate role in non-bearing internal fixation devices.

研究结果表明：非晶多孔结构的PLGA纤维可通过溶液沉析纺丝的方法获得，其孔径为0.1~1.0μm；压制压力和压制温度对材料的力学性能影响较大，材料的抗弯强度、剪切强度和抗弯模量均随着温度和压力的增大而先增大后降低；在压制压力为105MPa，压制温度为160℃时，试样的力学性能比较理想，此时，其抗弯强度可达到187.3MPa，剪切强度达到100.1MPa，抗弯模量达到2.5GPa，可望作为非承重部位骨折愈合内固定材料。

Through systematic field survey, sample collection, indoor ICP-MS analysis and SEM energy spectrum analysis, the authors have reached the conclusion that along the Bangong Co-Nujiang metallogenic belt bismuth content of single samples in 12 ore deposits or ore spots can meet the requirement of the cut-off grade, and that in 9 ore deposits or ore spots can meet the requirement of the industrial grade.

本文通过系统的野外调查与样品采集、室内ICP-MS与扫描电镜及电镜能谱方法分析，确定班公湖-怒江成矿带12个矿床单件样品铋含量达到边界品位的要求， 9个矿床单件样品达到工业品位的要求，最高达到9575×10？

Among the women, 121 always had orgasms during sex (take that with a large pinch of Beijing salt); 408 had them "often" and 243 rarely or never had an orgasm.

在女性中间，有121人能"经常"在做爱时达到高潮；408人"有时"能达到高潮；而243人很少，或从没达到过高潮。

Remember it takes considerable time and distance to reach high speed: if terminal velocity is 180 km/h, it takes 6.1 seconds (151 m) to reach 150 km/h in free fall, while to reach 170 km/h takes 9.1 seconds (283 m).

注意达到这一速度需要相当长的时间和距离：如果终端速度为180km/h的话（这一速度由自由式跳伞员给出），需要6.1秒，151米的自由下落达到150km/h的速度，如果达到170km/h需要9.1秒，283米的自由下落。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。