Eigenvalues of Discrete Dirac Equations with Periodic and Antiperiodic Boundary Conditions

Regional research results were as follow: ① The antipollution capacity of the soil-groundwater system in Luanhe Delta was weak. This led that the declining quality of shallow groundwater and serious pollution.

区域研究成果如下：①研究区地下水防护性能研究与评价表明：滦河三角洲地区土壤&地下水系统防护性能较弱，导致滦河三角洲地区浅层地下水质量下降，大面积污染严重。

Chinese officials have also reiterated plans to set up a national program for trading carbon permits, likely to be a cornerstone of its antipollution efforts, by as soon as 2016.

此外，中国官员还重申将建立全国性的碳排放许可交易制度，最早在2016年启动。这一制度可能会成为污染防治的基石。

The current transformer is fully enclosed. The primary and secondary windings and iron core are insulated by epoxy resin. It has a good ability of antipollution and moisture proof.

本型电流互感器为全封闭结构，一、次绕组及铁芯均浇注在环氧树脂内，耐污染及潮湿。

It is stated that advanced control and diagnostic sensors play a key role in car antipollution devices such as catalytic converters, electronic fuel injection, and exhaust-gas recycle systems.

本文论述了先进的控制型和诊断型传感器在催化转换器、电子喷油器和废气再循环系统等汽车防污染装置中所起的关键作用。

Based on the migration and transportation models of three N and petroleum pollutants and combined the antipollution capacity of groundwater, the influence of the two pollutants on groundwater were assessed.

在三氮与石油类污染物迁移转化模型的基础上，预测了典型污染物对地下水影响程度。

The field seep test, construction test and evaluation analysis for seep-prevention effect approved that deep mixed piles is a efficient means for groundwater antipollution.

通过现场截渗试验、施工及评估防渗效果分析，说明深层搅拌桩截渗墙处理是灰场地下水污染防治的有效方案。

Based on the waste residue's pollution mode and antipollution mechanism and some experiments, the paper provide approaches on harmless disposal and comprehensive utilization of it.

本文从废渣的污染方式和解毒机理出发，通过试验研究了废渣的无害化处理方式，并在此基础上提出了其综合利用的途径。

The improved digital variable displacement pump possesses such merits as strong antipollution ability, good repeatability, convenient interfacing with computer, and low cost.

改进后的数字变量泵具有抗污染能力强，重复性好，与计算机接口方便，价格低廉的优点；

China also provides the ships' antipollution requirements in the areas of environmental protection, dangerous goods management, pollution control, ship inspection and so on.

我国在环境保护、危险品管理、污染防治、船舶检验等立法中也规定了船舶防污要求，但一般针对海洋和内河分别予以规范。

A novel antipollution ultrafiltration membrane and reverse osmosis combined membrane process were applied for in the textile wastewater treatment and reuse.

文章研制了一种新型抗污染超滤膜，结合反渗透技术成功处理印染废水。

Several newer antipollution car fiber-optic sensors are presented. The development of the sensor technology for reducing car emissions is outlined.

介绍了几种最新型防污染汽车的光纤传感器，概述了减少汽车排放物传感器技术的发展。

The detector design consists of design and select of optic parts of an apparatus, circuit design, sampling area control and antipollution device design.

探测器的设计有：光学器件的设计和选取、电路的设计、采样区大小控制装置和防污染装置的设计。

Improvement of PET Bottle Mouth Antipollution

PET饮料瓶瓶口的防污染改进

Renewal of International Convention for prevention of pollution from ship urges the upgrading of antipollution equipment on ship.

由于国际船舶防污染公约的更新，船舶防污染设备的升级刻不容缓。

The Studies on the Growth and Antipollution Effects of Mixed Forest Pinus massoniana × Schima superba

马尾松木荷混交林生长与抗污染效果研究

The investigation of the environmental pollution by the exploration of copper mineral resources was made, and the antipollution measures were proposed.

对某铜矿在矿产资源开发中造成的环境污染作了调查，并提出了防污染措施。

Evaluation of groundwater antipollution of Xinxiang City

新乡市地下水防污性能评价

MPE films are getting wide application in antipollution packaging, anticorrosion packaging and fast liquid packaging.

在抗渗抗污染、抗化学腐蚀、带液快速包装中，茂金属聚乙烯薄膜正在得到广泛的应用。

This paper introduces the designing of a moving coil electrohydraulic servo valve which improve the ability of antipollution.

通过对一种动圈电液伺服阀的液压桥路和具体参数的设计，提高了这种伺服阀抗污染的能力。

Assessment of antipollution capacity of shallow groundwater in the plain area of western Jilin province based on GIS

基于GIS的吉林省西部平原区浅层地下水防污性能评价