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Using the substitution-elimination method affine algebraic variety can be resolved to pure d-dimensional subvariety and expressed by an algebraic hypersurface on d+1-dimensional space with a sequence of elimination-polynomial systems. All 0-dimensional solution can be found, too.

利用变换消元法可以把代数簇分解成纯d维的子簇，并把代数簇表示为d+1维子空间上的超曲面形式和一系列的消元多项式组，且能求出全部孤立解，同时给出了算法及其在多项式因式分解中的应用。

Let D be a bounded domain in the d-fl-dimensional Euclidean space Rd.

设是d+1维欧氏空间R~d的一个有界子集。

Since 1988,23 severe acute pancreatitis recieved total parenteral nutrition with modification consisting of provision of lower calory(46 kJ/d) and higher nitrogen 0.25～0.4· kg~(-1/d,while the extremely ill patients were treated with longer TPN.

作者报道了1988年以来43例重症胰腺炎患者术后行营养支持的体会。使用低热能46 kJ·kg~(-1/d、高氮量0.25～0.4g·kg~(-1/d，术后2周内以白蛋白或血浆强化的 TPN 支持方法。将按此法治疗的23例与1988年以前的20例进行比较，结果发现，尽管 B 组的病情明显重于 A 组。

North of the Siyang County Canal Area need a new surface water plant.The recent scale of the water plant is100,000 m3/d, and the long-term scale of the water treatment plant is150,000 m3/d..It will join with the first water plant north of the Siyang County Canal Area radiation to the surrounding urban areas, Laian, Baji, Nanliuji, Sanzhuang, Wangji, Zhangjiayu, Chuancheng, Aiyuan,Liren, and other townships. It will ensure the water quality, and put the water quality of projects into practice.

本设计为泗阳县第二水厂的方案与设计，通过对泗阳县运北区总体近期（2010年）和远期（2020）年的需水量预测，需要在泗阳县运北区新建一个地表水厂，近期10万m3/d，远期15万m3/d，与运北区原有的第一水厂向周边辐射城区、来安、八集、南刘集、三庄、王集、张家圩、穿城、爱园里仁等乡镇，确保供水质量，实施优质供水工程。

This paper studies how to define corresponding pulse transfer function D′ of digital controller, while there are zeros of conjugate complex numbers or negative real number in D, poses a solution method and gives comparative analysis for three different situations.

本文对D中含有共轭复数零点，或负实数零点时，如何确定数字控制器的相应脉冲传递函数D′的问题进行了研究，提出了解决方法，通过实例对三种不同情形进行了对比分析。

The sulphur atom in the intermediate has sp2 hybridization, and the remaining p orbital is symmetrical to the d orbital of the metal center. Thus, the lone pair on the p orbital can have interaction with the d orbital to form a π bond, which leads to the coplanarity of the center of Cp ring, Ru, P, S and Si atoms, rather than the deviation of P, S and Si atoms from the plane.

该中间体中，硫原子采取sp2杂化，硫原子剩余的一个p轨道与金属中心上的d轨道具有相同的对称性，因而该p轨道上的孤电子对可与金属中心上的d轨道形成π键，导致Cp环中心， Ru， S1， P和Si原子在同一平面内，而不是S1， P和Si原子偏离该平面。

In-vivo neutron and gamma spectra of depleted uranium sphere and vanadium sphere under central D-T neutron source were measured,with a 18 mm×20 mm stilbene crystal detector, at 7,10,13,16,19,22 cm away to the center in 45° direction in depleted-uranium sphrer, and 1.8,4.8,8.3 cm away to the center in the 0° direction in V sphere.

为获得介质内中子能谱及伴生γ能谱的实验数据，在中心D-T中子照射下，用18 mm×20 mm的茋闪烁体探测器，测量了与D+束成45°角的水平方向距球心7、10、13、16、19、22 cm位置处贫化铀球介质内的中子能谱和伴生γ能谱，以及钒球内与D+束成 0°角、距离球心1.8、4.8和8.3 cm处的中子能谱和伴生γ能谱。

Six days after inoculation, the cucumber root tip was slightly swollen and symmetrical root-knots were observed at the meristematic and elongation zones. Giant cells were differentiated by previous cambium cells in the center of the root; 10days after inoculation, symmetrical and secondary root-knots were observed at the root hair and upper zones. Vessels were separated by giant cells, around which protoxylem vessels were observed; l6days after inoculation, hypo-vascular tissue appeared earlier than normal; 20-30 days after inoculation, the vertical arrangement of vessels was disordered, shape was distorted and a new vascular tissue appeared in the cortex.

结果显示：接种后6 d的根尖分生区、伸长区出现膨大、对称的根结，根中心的原形成层细胞分化出巨型细胞；10 d在根毛区及以上部位出现既有对称又有偏于一侧的根结，周围有原生木质部导管出现，根结中巨型细胞阻断了导管；16 d次生维管组织提早出现；20~30 d导管纵向排列无序，形状扭曲，皮层中有新维管组织产生。

Methods to place nux vomical curare fluid into plastic bottle and 4 groups test tubes made ofsmall fresh white rat skin,with group a and c being control groups,group b and d being ultrasonic group.contents of chinese medicine were test at different time and statistic analyzed and compared.

将中药马钱子液置于塑料杯中，中间放置用新鲜小白鼠皮制成的透药试管，分成a、b、c、d四组，a、c组作为对照组，b、d组作为超声辐照组，在不同时间内检测试管中的中药含量。

If D is a decimal digit in the range 1-9, then outputs the text that matched sub-expression D.

如果D是1-9范围内的数字，那么输出子表达式D匹配的文本。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。