查询词典 pac

Solar silicon crystal growing furnace has two systems and three brands and all uses high performance CCD camera video vision sampling technology and PAC full automatic SCADA numerical control system of American Rockwell Automatic Co.,Ltd, and is suitable for 18/20/22 inch heat station and CZ method 6-8 inch IC circuit level and solar energy level silicon single crystal ingot.

硅单晶生长炉具有两大系列三个品种，全部采用高性能CCD影像视觉采集技术和美国Rockwell Automation公司PAC全自动SCADA数字控制系统，适用于18/20/22英寸热场和直拉法拉制6～8英寸电路级和太阳能级硅单晶棒。

The coagulative properties of PAC and CaPAC are explored by using the jar test.

结果表明，PAC、CaPAC在对不同水样进行混凝处理后。

Polyaluminum chloride (PAC-1) is a new and efficient inorganic polymer coagulants. The selection of bauxite products, calcium aluminates, hydrochloric acid produced with advanced technology, have a good flocculation effect. its effect is better than the traditional aluminum sulfate and water purification molysite ordinary inorganic coagulants and general polyaluminum chloride. can be widely used in industrial water purification and wastewater treatment. of sewage and wastewater is also ideal purifying effect.

聚合氯化铝（PAC-1）是一种新型高效的无机高分子混凝剂，本产品选用铝矾土、铝酸钙粉、盐酸以先进工艺制成，具有良好的絮凝效果，其净水效果优于传统的硫酸铝和铁盐等普通无机盐类混凝剂及一般的碱式氯化铝，能广泛用于工业用水及废水的净化处理，对生活污水和各行业废水也具有理想的净化效果。

Methods Thirty-seven cases of ovarium carcinoma that using two different chemothera-py plan about PC and PAC after reducing carcimoma operation were observed.

对37例卵巢上皮恶性肿瘤减瘤术后分别应用PC与PAC两个化疗方案联合化疗效果进行分析；完成3个疗程化疗后，总结治疗效果。

In SDS-PAC system, the hydroxide groups bridging effect of the polymolecular hydroxide complex ion is the main mechanism of surfactant flocculation.

SDS-PAC体系中，多核羟基络离子在胶束之间的羟基架桥作用，是表面活性剂混凝沉淀的主要机理。

The experimental results show that the interaction between polysilicic acid characterized negative charge and hydrolyzed aluminum species results in the decrease in the charge-neutralizing ability of PASC, in comparison with PAC.

研究结果表明，在 PASC 中，由于带负电荷的聚硅酸与铝水解聚合产物间的相互作用，使得 PASC 的电中和能力较 PAC 有所下降，其下降程度与 PASC 的碱化度和 Al/Si 摩尔比密切相关，B 值和 Al/Si 摩尔比越小，则 PASC 的电中和能力就越弱。

When the dosage of PAC with 75% of base saturability is 0.6 g\L water, the removal rate of COD is 69%, removal rate of SS is 84%, the treated wastewater can meet the requirement of the discharging standard

对于选用的75%的PAC，当投药量为0.6g\L时，COD 去除率达69%，SS 去除率为84%，处理后的废水达到国家排放标准。

The treatment of the grey water of paper industry from Xihuafeng, Wuzhi, Henan province has been stated as follows: When the dosage of PAC with 75% of base saturability is 0.6 g/L water, the removal rate of COD is 69%, removal rate of SS is 84%, the treated wastewater can meet the requirement of the discharging standard

对于河南武陟县西滑丰造纸厂选用的75%的PAC，当投药量为0.6 g/L时，COD去除率达69%，SS去除率为84%，处理后的废水达到国家排放标准。

Research content and research object. The Coagulant Dosage Automatic Control System is discussed emphatically. Including the relation is put up between target standard and the infection factor by date analyzed chart and educational established and sum up the best working point. The target standard including SS COD and OIL .The infection factor including the dosage of PAC PH Mill INTENSION and TIME. On the basis of craft character and control request, it makes a selection of scheme to the whole control system. Finally a scheme is chosen and described as follows: CPU222 of SIEMENS PLC S7-200 is used as the control kernel. V606IC TOUCHER is used as communication man and machine. Controlling pump, compressor, metric pump of system by gathering andanalyzing the flow, PH of raw water .

重点探讨系统的投药自动化，包括系统的数学模型建立的过程，通过数据分析，采用图表和方程式建立系统排放指标(SS、CODcr、含油量)，与各种因素(PAC用量、PH值、搅拌强度、时间)的关系，确定系统的最佳工作点；根据系统工艺特点以及控制要求，对控制系统设计方案进行了选择，确定以西门子PLC(S7-200 CPU222)为控制核心，V606IC10触摸屏作人机界面，通过对原水流量和PH计采样、分析，实现系统中的泵、风机、计量泵等控制；文中从功能上简要地介绍监控系统和给出了自动化原理构成图、PLC软件流程图及部分主要程序。

Compared to PAC, the aggregating clusters of PACP are larger in size and more branched.

与PAC一样，PACP体系中占主导的形态仍是Al_b形态。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失