排放

The relationship between olefin content in gasoline and exhaust emission of gasoline engine is discussed.

讨论了汽油中的烯烃与发动机排放之间的关系。

PCBs at the beginning of the land fill were mainly composed of the 3-Cl and 5-Cl compounds. In the late of the land fill, 2-Cl compounds increased significantly. The main factor affecting the PAHs, PCBs contents were microbial degradation and transformation. Analysis of the pollutants source s indicated that PAHs in sludge were mainly derived from the waste water of refinery, coking plant, gasworks, smelt plant and pitch plant.

填埋初期污泥中PCBs主要以3-Cl和5-Cl化合物为主，填埋后期，2-Cl化合物大大增加，占总的PCBs含量的大部分影响PAHs、PCBs含量变化的主要因素是生物对PAHS的降解转化根据污泥中各污染物的含量对污染物进行源解析表明，污泥中PAHs主要来源于炼油厂、炼焦厂、煤气厂、冶炼厂和沥青厂等排放的废水。

In order to meet the discharge norm of the contamination concentration limit, zone generalized predictive control is adopted which transforms the conventional quadratic objective of the MPC into a linear programming with soft constraints; besides, considering the wastewater treatment plants energy-saving targets, a multi-objective predictive control is formulated and finally hierarchical multi-objective optimization algorithm is applied for on-line optimization solution.

根据污水处理过程的实际要求，为了满足氮浓度的排放标准区间要求，研究了污水处理过程的区间广义预测控制策略，把预测控制的常规二次目标转化为带软约束问题的线性优化问题；同时考虑到污水处理的能耗，在出水水质目标之上建立了能耗最小目标，得到了污水处理的多目标预测控制，最后采用分层多目标优化算法进行在线优化求解，得到污水处理过程的多目标预测控制。

The thesis generally analyses the actual situation of emission of S0, and the trend of development in the futtJre basing on the structure of resources and the development of electric power, Through the comparison of thermal generating station home and abroad analyses the air pollution control direction and propose the methods and suggestions of improving the pollution control of S0:.

中文摘要：本文在分析我国能源结构状况和电力发展的基本趋势基础上，对我国SO_2排放现状和未来发展的趋势进行了总体分析：通过对我国与国外发达国家火电厂大气污染控制的全面比较，分析了我国对大气污染控制的发展方向，并提出了我国目前加强对火电厂SO_2污染控制的对策与建议。

The current rate of increased carbon dioxide release into the atmosphere by humans may delay the onset of the next period of glaciation until at least 50,000–130,000 years from now.

由于人类向大气中排放二氧化碳的速度加快，下一个冰川时期的到来可能会有所延迟，至少在距今 5 万至 13 万年以后。

It is pleasant that high-end chipsetclasssometimes can gladden owners by the low heat emission level .

它是舒适，高档次的芯片级，有时gladden业主的低热量排放水平。

That LCA tells us that heating the furnace accounts for 16 percent of glassmaking's negative impacts; the chemicals released into the air from the glass factory run from relatively high levels of carbon dioxide to trace amounts of toxic metals like cadmium.

LCA技术可以告诉我们：熔炉加热环节对环境造成的负面影响比率为16%；而从玻璃制造厂排放到大气中的化合物则从含量较高的二氧化碳到各种痕量金属都有，如镉等。

Estimates of the overall impact of this on global warning are variable and are subject to a high degree of uncertainty.

飞机排放氧化氮对全球变暖的总的影响程度是不断变化的，也是很不确定的。

Seedling armies pop up from the ground, a spooky bean emerges from the soil, and a goatsbeard seedpod pops open to spew its seeds, fitted with tiny parachutes.

幼苗弹出军队从地面，一个怪异的bean的土壤中产生，并goatsbeard开放seedpod持久性有机污染物排放的种子，装有微型降落伞。

Firstly, there are greenhouse gas emissions.

首先，有温室气体的排放。

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。