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- Water quality - Determination of chemical oxygen demand (COD). 水质。氧的化学消耗量的测定(重铬酸钾法)
- The key test of the airborne laser, megawatt- class chemical oxygen iodine laser and the flight testing of BC/ FC system are introduced. 介绍了机载兆瓦级化学氧碘激光器的关键试验和束控-火控系统的飞行试验。
- Data collected in the survey was used to review the generic chemical oxygen demand (COD) values of trades subject to the Trade Effluent Surcharge (TES) scheme. 所收集的数据用于检讨计划下适用于各行业的基本化学需氧量。
- Real-time monitoring of chemical oxygen demand in water and EW-2100 UV absorption water quality automatic on-line monitor. 水体化学需氧量实时在线监测与EW-2100紫外吸收水质自动在线监测仪
- The chemical oxygen demand(COD)and thebiochemical oxygen demand in 5 days(BOD5)of prime sewage were more than paddy field wa-ter in SIA. 原污水的化学需氧量（COD）和5日生化需氧量（BOD5）高于污灌区稻田水；
- The results showed that the removal efficiency of chemical oxygen demand (COD) and decoloration efficiency were above 95%. 结果表明，经过该法处理后，废水中的化学需氧量（Chemical Oxygen Demand ，COD） 和色度的去除率都在95 %25 以上。
- With the instance of chemical oxygen demand concentration of Osaka Bay in Japan, a nice effect of the application of this method is presented. 以日本大阪湾的COD浓度为例 ;取得了良好的拟合及预测效果 ;从而具有广泛的应用前景 .
- Total organic carbon (TOC) and chemical oxygen demand (COD) and biological oxygen demand (BOD5) are commonly used to show organic polutant water. 在水质监测中通常应用TOC、COD、BOD_5间接反映水体受到有机物污染的程度。
- The effect of chemical oxygen demand (COD) and hardness of wastewater on removal efficiency of ammonia using cation-exchange resin was analysed. 研究表明,在对炼油污水进行深度处理时,污水的COD、硬度严重影响树脂对氨、氮的吸附。
- This service units contain the mask box, door latch release actuator, latching mechanism, chemical oxygen generator and oxygen mask. 这个服务设备包括氧气面罩盒、门锁释放作动筒，锁定机械装置、氧气发生器及氧气面罩。
- The key test of the airborne laser, megawatt -class chemical oxygen iodine laser and the flight testing of BC/FC system are introduced. 介绍了机载兆瓦级化学氧碘激光器的关键试验和束控-火控系统的飞行试验。
- The so-called chemical oxygen demand (COD), is under certain conditions, a strong oxidizer used for water treatment, the amount of capacity. 所谓化学需氧量（COD），是在一定的条件下，采用一定的强氧化剂处理水样时，所消耗的氧化剂量。
- The purpose of studying the correlation of total organic carbon (TOC) with permanganate index and chemical oxygen demand (COD) has been stated. 叙述了研究总有机碳与高锰酸盐指数及化学需氧量相关关系的目的。
- Simultaneity give out the chemical oxygen consumption(COD)and total organic carbon(TOC)the linear relationship equation. 同时给出了化学耗氧量(COD)和总有机碳(TOC)之间的线性关系方程。
- After the sewage is defecated by the resin,the sorption efficiency of Chemical Oxygen Demand (COD) and Biologics Oxygen Demand (BOD5) reach 70.15% and 77.66%,respectively. 树脂在甲苯蒸汽环境中，3h后增重31.;2%25； 污水经树脂处理后化学需氧量（COD）、生化需氧量（BOD5）的吸除效率分别达70
- By 2005, China will be integrated environment-water pollution, and through engineering measures for the chemical oxygen demand and ammoniac nitrogen emissions reduced by 10%. 到2005年，中国将对受到污染的水环境进行综合整治，并通过工程措施使化学需氧量和氨氮的排放总量削减10%25。
- This paper discusses in detail that coulometry quickly measures chemical oxygen demand of low polluted domestic sewage of the school and high polluted industrial sewage. 本文详细论述了库仑法快速测定低污染的校区生活污水和高污染的工业污水中的化学耗氧量。
- The results showed that magnesium hydroxide had good effect for decoloring and suspended substance removal,meanwhile,removal rate of chemical oxygen demand was also quite high. 研究结果表明，氢氧化镁在印染废水的处理过程中，具有良好的脱色效果和悬浮物的去除效果，对化学需氧量的去除率也相当高。
- The former is specified as injurant cycanuric, 6 chromium, mercury and cadmium, etc 24, biochemical oxygen demand (BOD), chemical oxygen demand (COD), iron, Tin 16. 对前者指定的有害物为氰、6价铬、汞、镉等24项，对后者为生化需氧量(BOD)、化学需氧量(COD)、铁、锡等16项。
- The energy consumption, water consumption, as well as chemical oxygen demand and sulfur dioxide emissions per 10-thousand-yuan GDP have been decreasing year by year. 万元地区生产总值能耗、水耗以及化学需氧量、二氧化硫排放量逐年下降，节能减排走在全国前列。
