无环的

To solve the difficulty in modeling a chemical system a new node granularity transformation method based on object directed acyclic graph was proposed.

针对化工系统模型难以确定的问题，提出了基于对象的有向无环图节点粒度的转换方法。

The temporal constraint network is a kind of directed acyclic graph,and could well represent temporal logics.

在人工智能研究领域发展起来的时序约束网络是一种能够清晰而直观地表示时序逻辑的有向无环图，适于解决计及警报信息时序特性的警报处理问题。

The experimental results show that the algorithm based on directed acyclic graph by the spacial relation among changing data can improve computing performance of an extraction of graphical data.

结果表明，基于有向无环图表示的数据抽取算法利用变化数据的空间关系能够提高计算性能，且算法的计算时间与变化数呈线性关系。

Based on the available resources mapping algorithm using the directed acyclic graph, a new dynamic resource co-allocation algorithm is proposed to solve the dynamic problem of the resource co-allocation in the grid.

摘要针对网格系统中资源协同分配的动态性问题，分析了现有的基于有向无环图的资源映射方法，提出了一种动态资源协同分配算法。

Therefore at present the theory of acyclic database schema design has become a new important branch of database study.

无环数据库模式的设计理论研究，已成为了当前数据库研究的一个新的重要分支。

Transmit Softclipping Time Constant Receiving Input Sidetone Network Input Line Current Regulation Stop Value Microphone Input Microphone Input Transmit Gain Adjustment Transmit and Receive Part Power Supply Ground Line Current Source Power Supply Voltage Stabilizer Positive Line Unregulated Microcontroller Power Supply Receive Gain Adjustment Negative Earphone Output Positive Earphone Output Ringer Buzzer Output Ring Power Supply Reset Power On Ring Indicator Oscillator Input Mask, Ring Melody Input Data Input Data Clock Input Microcontroller Stabilized Power Supply Reference Voltage (VCC/2) DTMF Filter

1第1页，本页显示记录1-8，共8条记录分1页显示发送Softclipping时间常数接收输入侧音网络输入线电流调节停止价值麦克风输入麦克风输入发射增益调整发送和接收部分电源地线电流源电源稳压器的正电源线无管制的单片机接收增益调整负耳机输出耳机输出正林格蜂鸣器输出电源供应环环指标振荡器输入掩码电复位，环旋律输入数据输入数据时钟输入单片机的稳定电源参考电压（Vcc / 2）双音多频滤波器

We selected 33 segments which show hypokinetic or akinetic at resting echocardiography to undergo identification ofviability.Pulsed-wave Doppler tissue imaging was recorded at mid-point of endocardium of every selected segment, at inner and outer mitral annul us as well.Then we measured the parameters.

应用16节段半定量法分析室壁运动，选取静息状态下低动力或无动力的心肌节段进行存活性的评价，留取受检节段长轴方向心内膜中点及二尖瓣内、外环脉冲组织多普勒频谱图，测量各参数。

UV and SMPE-GC-MS results confirmed that radical-oxidation and hightemperature pyrogenation controlled the sonochemical-oxidation of toluene, and mainmiddle-products included benzaldehyde, bibenzyl, dibutyl phthalate, et al., final products werecarbon dioxide and water. The reactive violet K-3R was chosen as a model compound to study the effect ofsonoelectrochemical degradation of nonvolatile pollutant.

以超声与电化学作用处理活性紫K-3R水样，二者协同效应明显，5V槽电压时60min K-3R脱色效率要比纯电场作用时高57.8％，纯超声场对活性紫基本无显著的降解作用，初始浓度、pH对超声电化学协同降解影响较大，实验建立了活性紫降解的动力学模型，经超声电化学处理后，K-3R共轭发色体系已基本被破坏，但溶液中仍有苯环等产物。

Cyclohexyl acetate was synthesized by oil of vitriol,ferric chloride and copper sulfate,respectively,and the influence of copper sulfate containing water and no-water for the reaction was discussed.

摘 要：分别以浓硫酸、氯化铁、硫酸铜为催化剂催化合成醋酸环己酯，考察了有无结晶水的硫酸铜对酯化反应的影响。

This disease is important to recognize because there is an effective drug treatment, acyclovir.

认识这种是很重要的，因为针对它有一种有效的治疗药物，无环鸟苷。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。