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Abstract: Under the laser irradiation,the characteristics of the metal ion in the deposition processes are described in the paper.
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文摘:介绍在镀液中，在激光光束作用下，金属离子沉积过程的一些特点，并对其原因进行了简单的探讨。 |
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Abstract: Under the matrix loss function, the necessary and sufficient conditions of linear admissible estimates of nonestimatible parameter functions for a general linear model are obtained.
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文摘:一般线性模型可估函数的可容许估计问题已有详细的讨论。对一般线性模型在矩阵损失下，得到了不可估函数的线性估计为可容许估计的充要条件。 |
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Abstract: Unsaturated polyester with low shrinkage composied of anti-shrinking agent,thermoplastics,dispersion-stabilizer,a kind of graft copolymer made from styrene and saturated polyester,shaped like a comb for its molecular structure and UPR in certain
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文摘:研究了当用热塑性树脂作为不饱和聚酯树脂低收缩剂时，合成了以苯乙烯为主链，聚酯为枝链的梳状接枝共聚物，作低收缩剂的分散稳定剂，配合相应组成的不饱和聚酯树脂得到了具有低收缩特性的不饱和聚酯组成物。 |
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Abstract: Upgrading supplement level with the supply chain integration as the core is the trend of food distribution industry of 21st century.
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摘要：21世纪食品流通业发展的态势是：以供应链集成为中心、以提升补货物流水平为重点。 |
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Abstract: Using NOAA/AVHRR data observed at Urumqi,Fukang,Altai,Balikun monitoring station during 1992～1994,the annual variation characterisitics was studied and the differences of grass yield and AVHRR vegetation indices were compared.The grass yield and
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文摘:采用1992～1994年牧草产量资料、NOAA/AVHRR资料分析了北疆主要天然草地牧草产量与卫星植被指数的变化特征，结果表明牧草产量和卫星植被指数都存在周年变化，用卫星植被指数可以较好地反映牧草产量的年际变化和不同类型天然草地的牧草产量差异，但对草甸草地和草原草地的监测效果比对荒漠草地监测效果好，利用实测资料建立了新疆北部主要天然草地牧草产量遥感监测模型。 |
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Abstract: Using furan sand to produce heavy diesel engine block and crankshaft eliminated defects of castings including “penetration/burn-in”,“shrinkage porosity”,“big dimension deviation” of cylinder block,“penetration/bum-in”,“misrun”and“run-out”of cran
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文摘:树脂砂铸造工艺应用于大型球墨铸铁件整体铸造柴油机缸体、曲轴生产上消除整铸缸体“粘砂”、“缩松”、“尺寸偏差大”及曲轴“粘砂”、“浇不足”、“漏铁液”等铸造缺陷，具有明显的效果。 |
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Abstract: Using high pressure greasing technique, the special protection grease for steel cable is poured into the flax wick of steel cable at the operation.
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文摘:采用高压注脂技术，向运行中的钢丝绳麻芯内注入专用的钢丝绳防护脂。 |
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Abstract: Using measurements, surveys and new analytical tools, an MIT-led international team is helping Chinese policy makers analyze their nation's cokemaking industry and assess potential economic impacts of strategies to clean it up.
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摘要：借助各种测量、实地调查和新的分析工具，以麻省理工学院为首的国际研究小组正在帮助中国决策者分析中国的焦炭生产行业，评估产业清洁化战略措施的潜在影响。 |
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Abstract: Using small and medium-sized test units, we inquire into the practicality and economy of pre-treatina the yellow hogwash yielded during the production of the soybean products.
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文摘:采用小型和中型试验装置利用酵母菌对豆制品生产中产生的黄泔水进行预处理，对其实用性和经济性进行了探讨。 |
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Abstract: Using the convective-dispersive equation and based on labo ratory exp eriment, the hydrodynamic dispersion coefficient of unsaturated soil is determi n ed under different inial soil water content, different manner of water infiltra t ion and fer
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文摘:用非饱和土壤水动力弥散方程及其解析解，在室内试验的基础上，研究了非饱和土壤在不同初始含水量、不同入渗方式及不同加肥方式下的水动力弥散系数。 |
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Abstract: Using the criterion of the free energy,we prove that the mechanical equilibrium condition for liquid droups on the condenser surface depends on the angle of contact (α).For α>90° the chemical potential of liquid drops on the condenser surface is
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文摘:应用自由能判据证明了冷凝器壁面液滴的力学平衡条件与接触角有关，进而证明了当壁面液滴与壁面的接触角大于90°时，冷凝器壁面液滴的化学势将小于同曲率的球形液滴的化学势；另外，在相同饱和比下，壁面液滴的临界半径也小于球形液滴的临界半径.而在接触角小于90°时，情况则恰好相反.正是由于这双重原因，使得滴状冷凝的传热性能大大优于膜状冷凝的传热性能，并由此求出了冷凝器壁面液滴的最佳接触角. |
