排放

With passage diameter at 8mm, the maximum power is 83% of the original engine at 1200rpm and 73% of the original engine at 1400rpm respectively, Meanwhile NOx emission has been reduced compared to the direct injection natural gas engine.

在通道直径d=8mm转速1200r/min时达到原机功率的83%，转速1400r/min时达到原机功率的73%，同时NOx排放较直喷压燃式有所降低。

To solve the problems that cyclic variation is high in low power output and NOx emission is high in high power output in compression ignition engine with compressed natural gas direct injection,a swirl chamber combustion system with glow plug ignition was developed.

针对缸内直喷压燃式天然气发动机低负荷循环波动大及高负荷NOx排放偏高的问题，设计开发了涡流室式热面点火燃烧系统，研究了涡流室通道尺寸对缸内天然气空气混合气形成、着火燃烧及发动机运转特性的影响。

Open needle valve "B" to bleed air and then close "B" and vent needle valve.

开启针形阀"B"排放空气，然后关闭"B"和排气针形阀。

Close "A" then open needle valve "B" bleeding air and then closing "B".

关闭"A"，然后开启针形阀"B"排放空气，然后关闭"B"。

The addition of MCMP had not only ensured the water quality of treated effluent to be up to first-class B of "Discharge standard of pollutants for municipal wastewater treatment plant"(GB18918-2002), but also achieved the removal of N and P effectively. Based on surveying the content of heavy metals, the T-Hg is about 81% higher, the TAs is about 110% higher, the TNi is 46% higher, the TK is 24% higher, the TP is 7% higher, the TCr is 64% lower, the TN is 29% lower. The MLVSS/MLSS is lower. The SVI value is from 19.3 to 26.23. This method needed no changes for wastewater treatment process and operation pattern, the extra consumption of power was also needlessness.

但同时发现，总汞较试验前提高81%，总砷较试验前提高110%，总镍较试验前提高46%，总钾较试验前提高24%，总磷提高7%；总铬较试验前减少64%，总氮减少29%，污泥的MLVSS/MLSS值略有降低，SVI值从19.3增加到26.23，为了保证排放的污泥中重金属含量不超标，在以后的实际生产运行中，需要定期以排泥形式排出含重金属等污染物的污泥，以保证污水处理的正常运行。

Both NEMA and ACEEE see this proposal as a great opportunity to help the country to reduce greenhouse gas emissions.

NEMA和ACEEE 都将这项建议看做是一个伟大的机遇，帮助美国降低二氧化碳排放。

Compared with the traditional method of retting in warm water, the technology could gain another net profit 271.2 Yuan per ton of flax fiber, the BOD and the discharge of the SS of the degumming water could be decreased by more than 33% and 89% respectively.

与传统温水沤麻方法相比，每加工1吨亚麻原茎，增加直接经济效益271.2元；沤麻水的生化需氧量(BOD5)和悬浮物排放总量分别减少33%和89%以上，在提高沤麻水的利用率、生产效率和改善劳动环境等方面有显著的社会生态环境效益。

One of the main characteristics is the usage of water for transport of the night soil, which contains the major part of the organic matter and nutrients of the urban wastewater.

目前的城市污水排放模式沿用了欧洲19世纪工业化和城市化进程中所奠定的模式，其重要特征之一是用大量的水作为载体来输送城市污水中富含有机物与营养盐的人粪尿。

But, this kind of condition would only occurred when a great deal of nitrobacteria are added into the water.

1去氨硝化菌能将鱼类所排放的氨转成毒性较小的亚硝酸盐，而去亚硝酸硝化菌则负责将亚硝酸盐再转成毒性更小的硝酸盐，硝酸盐必须由换水的方式移除，像硝化细菌这类的细菌再作用时需要消耗水中的氧气所以也称好氧菌。

This imbalance in the global nitrogen cycle has led to uncontrolled nitrogenemissions into the atmosphere and water systems.

这种不平衡现象在全球氮循环，导致无节制氮气排放到大气和水系统。

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。