查询词典 emission control

The exhaust emission can even reduced to 73% if applied closed loop control plus three element catalyser.

在采用闭环控制并加装三元催化器后，废气排放率可降低73%。

The nitrous oxide emission of fluidized bed combustors is also analyzed and commented. A strategy for both NOx and N2O control is proposed.

另外，还对氧化二氮排放进行了分析评述，提出了同时控制NOx和N〓O的策略。

An experiment was conducted to measure the carbonaceous gas CO2, CO, C(subscript xH released from 22 types of fuels (9 species of arbors, 7 species of bushes and 6 species of herbages) in Daxing'an Mountain during the combustion process sing the method of field investigation combined with indoor combustion environment control. The emission factors of different gases were calculated.

采用外业调查和室内控制环境实验相结合的方法，对黑龙江省大兴安岭地区22种（9种乔木、7种灌木和6种草本）可燃物类型燃烧过程中释放的含碳气体CO2、CO、C(下标 xH进行了测定，并计算了不同气体的排放因子。

Based on the data of directional core drilling, FMI, routine cores and their thinsections, we have described the characteristics of H3 reservoir in Anpeng oil field, Miyang sag. By analyzing the stable isotopes of 20 fracture infillings and 5 groups of acoustic emission, combined with the studies of fracture characteristics and tectonic evolution, the fractures in H3 member were assigned to the regional fracture type which is characterized by the dominance of vertical or highangle extensional fracture, occurring in groups, relatively stable occurrences and out of the control of local nosetype folds. It has been recognized that there are 4 breaking stages, of which the 2nd one is the major stage.

根据定向取心、成像测井、常规岩心及薄片资料对安棚油田核三段储层天然裂缝特征进行分析的基础上，通过对20个裂缝充填物的稳定同位素测定，5组样品的声发射实验，结合岩心裂缝特征、地质构造历史等，确定出核三段地层中裂缝为区域性裂缝，以垂直或高角度张性缝为主，成组出现，产状稳定，不受局部鼻状构造控制，确定出裂缝有4个破裂期，主要破裂期为第二期。

Amongst all the pos-combustion techniques, SCR method is one of the common practices. Yet, during the process of most SCR method, the corrosive reductants can lead to further pollution. As a result, developing alternative control technology is of the highest priority to effectively reduce NOx emission for the industry.

其中又以选择性触媒还原法较为普遍，但是其在还原过程中还原剂的溢散、腐蚀等问题还有待解决，所以再找寻更合适的技术是刻不容缓的事，因此如何有效降低氮氧化物之排放，对产业界乃是一项挑战。

By utilizing electromagnetic valve, we can control opening and closing timings of intake and exhaust valves according to the operating situation of the engine. Therefore, the engine performance can be improved suitably in exhaut emission during starting, idle stability, fuel comsumption and engine power, etc. When an engine rotates in the low speed, gas flow is bad and the throttle which adjusts air mass is apt to cause the pumping lose of the engine.

中文摘要传统机械式可变汽门正时系统为分段固定式机构，无法根据引擎转速以及负载变化来提供适当的汽门正时；利用电磁式气阀可根据引擎当时状况控制进排气门的开启与关闭正时以及汽门持续开启正时，因此引擎在冷启动废气排放、怠速稳定性、燃油消耗率以及引擎性能等方面均相当之改善。

The effects of different compression ratios and spark advance angles on the performance and emission of the LPG engine were studied. Through the designed control system, the quantity of injected LPG and ignition timing in different operations can be controlled automatically.

借助设计的控制系统实现了发动机各个工况下喷气量和点火定时的控制，并通过试验对发动机燃用汽油和LPG两种情况下的性能进行了对比分析。

Indoor air sources of formaldehyde are mainly in the following aspects : 1, the plywood used for interior decoration, Ximugongban, medium density fibreboard and shaving board, and other artificial plate because formaldehyde has strong sexual bond, has strengthened plate and the hardness control, corrosion functions, Therefore, the current production of imitation board use Jiaonianji merits to formaldehyde as the main ingredients thiourea aldehyde resins, plate, residual and did not participate in the response formaldehyde will gradually release of the surrounding environment is a indoor air formaldehyde main ;2, using imitation board manufacturing furniture, some manufacturers in the pursuit of profit, the use of unqualified plate. In preliminary front face material reuse inferior glue, the manufacturing processes are not standardized, as a result of customers buying home, to buy a small emission points ;3, containing formaldehyde content and may distribute to the outside other categories decorative materials, such as stickers Qiangbu, with wallpapers, chemical fiber carpet, foam, paint and paint, etc.;4, combustion, emit formaldehyde certain materials, such as cigarettes and some organic materials.

室内空气中的甲醛来源主要有以下几个方面：1、用作室内装饰的胶合板、细木工板、中密度纤维板和刨花板等人造板材，因为甲醛具有较强的粘合性，还具有加强板材的硬度及防虫、防腐的功能，所以目前生产人造板使用的胶粘剂是非曲直以甲醛为主要成分的脲醛树脂，板材中残留的和未参与反应的甲醛会逐渐向周围环境释放，是形成室内空气中甲醛的主体；2、用人造板制造的家具，一些厂家为了追求利润，使用不合格的板材，在粘接贴面材料时再使用劣质胶水，制造工艺不规范，结果顾客买回家去，等于买回了一个小型废气排放站；3、含有甲醛成分并有可能向外界散发的其他各类装饰材料，比如贴墙布，贴墙纸，化纤地毯、泡沫塑料、油漆和涂料等；4、燃烧后会散发甲醛的某些材料，比如香烟及一些有机材料。

The results show that the rotary air curtain exhaust hood can effectively control the deleterious materials,greatly improve the suction.Therefore,it realizes long-distance trapping and low velocity emission of deleter...

结果表明：旋转射流屏蔽作用下的抽吸流场具有中部压力较低和提高抽吸能力的作用；新型旋风气幕式排风罩不仅能有效地控制有害物扩散，而且可以实现远距离捕集有害物及以较小的排风速度排放有害物。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。