From the global energy market, methanolbased DME has already been a new energy to be encouraged to develop in near future.
纵观国内外能源形势，在我国发展二甲醚等煤基醇醚燃料，符合产业政策，市场前景良好。
By comparing the various parameters of combustion characteristics between LPG and dimethyl ether and the exit speed of burner port of 20Y range, the reconstruction scheme of 20Y range is determined after the gas source is converted to DME.
通过比较液化石油气和二甲醚的各种燃烧特性参数以及在20Y 灶具上的火孔出口流速，确定气源改为二甲醚后20Y 灶具的改造方案，通过实验最终确定液化石油气灶具改用二甲醚后的结构参数。
In the event of non-availability of glideslope information, the localizer approach may be flown and, with operational DME, timing is not required.
在下滑道信息不可用的情况下，可以选择倚重状况完好DME的航道进近，此时不需要计时。
DME can be directly filled into auto air conditioner to replace R134a, but the spring pretension of thermal expansion valve should be slightly increased to raise superheat degree at evaporator outlet for ensuring the refrigeration efficiency of DME.
二甲醚可以直接灌注式替代R134a，但会造成蒸发器出口过热度降低，需对膨胀阀弹簧预紧力进行调整，才能充分发挥二甲醚的制冷性能。
12 Ejector Stop Buttons/Stroke Limiters:顶出挡块/行程限位 DME style stop buttons are not to be used.
不使用DME挡块，选用直径2的垫块以螺钉固定在底板上。
A mathematic model of pump-pipe-nozzle fuel injection system that common used by DME is created according to the reasonable assumption. The mathematic model is based on the dynamic principle of the pressure wave spread in high pressure pipe including equations of the conservation of mass, the dynamics equations of moving parts of pump and nozzle`s boundary conditions.
本文通过对二甲醚发动机目前常用的泵-管-嘴燃油喷射系统的合理模型化，建立了燃油喷射过程及其压力变化的数学模型，并与高压油泵和喷油嘴边界的质量守恒方程和运动件的运动方程相耦合，利用FORTRAN 语言进行了计算机编程，开发了二甲醚发动机燃油喷射过程的模拟计算程序软件。
In a general procedure, THF: was selected as thepreliminary ligand of the 〓as solvent, after the reduction of 〓 bymetal is completed, the additive, such as the Pyridine, DME or TMEDA, wasadded.
在一般的反应中均以THF为〓的配体溶剂，以〓为溶剂，或在金属对〓还原完成后再加入另外一种配体，如TMEDA、Py、DME。
I. engine was modified to carry out the test for combustion and emission control in a DME engine using internal-external exhaust gas recirculation by port aspiration and in-cylinder injection of dimethyl ether.
在一台改造过的2-135柴油机上通过气道引入二甲醚和CO2实现了内外部EGR同时控制二甲醚发动机燃烧与排放的试验研究。
The prepared catalyst has been tested in a laborotary fluidized-bed reactor with the productivity of DME 2.5 times more than that in slurry bed reactor.
流化床催化剂活性评价结果表明，对于含20％硅溶胶的催化剂，在H〓/CO=1、T=260℃、P=4.0MPa、SV=3000ml/条件下，CO转化率为48.5％，DME选择性为97.0％，DME时空产率为0.49g/，是浆态床DME时空产率的2.5倍。
All aircraft below 9000m within 40km ZHO DME leaveimmediately to the west.
所有在ZHO DME距离40KM，高度在9000M以下的飞机紧急向西避让。
Light oil 2, 000 yuan/ton; ferrocene 20000 yuan/ton; DME 2, 500 yuan/ton; Light EPA [density 0.60-0.63] 2, 000 yuan/ton; sodium bicarbonate 2600 yuan/ton; Mercaptans 3, 000/ton; xylene 3, 500 yuan/ton; potassium permanganate 5, 000 yuan/ton; petroleum ether 3, 000 yuan/ton; naphtha 2900 yuan/ton; butane 2, 000 yuan/ton; acetone 4400 yuan/t; hydroquinone 15, 000 yuan/ton.
轻质油2000元/吨；二茂铁20000元/吨；二甲醚2500元/吨；轻烃碳五[密度0.60-0.63]2000元/吨；碳酸氢钠2600元/吨；硫醇3000元/吨；二甲苯3500元/吨；高锰酸钾5000元/吨；石油醚3000元/吨；石脑油2900元/吨；丁烷2000元/吨；丙酮4400元/吨；对苯二酚15000元/吨。
Light oil 2, 000 yuan/ton; ferrocene 28000 yuan/ton; DME 3, 000/ton; sodium hydroxide 2600 yuan/ton; Mercaptans 18, 000 yuan/ton; Flavor 36, 000 yuan/ton; Light EPA [density 0.60-0.63] 2, 500 yuan/ton; sodium carbonate 1, 000 yuan/ton; hydrogen peroxide 1, 000 yuan/ton; xylene 4200 yuan/ton; potassium permanganate 5800 yuan/ton; petroleum ether 3, 500 yuan/ton; naphtha 2900 yuan/ton; ethanol 2800 yuan/ton; dry gas 4100 yuan/ton; butane 2, 500 yuan/ton; acetone 4400 yuan/ton; hydroquinone 18, 000 yuan/ton; natural gas (6 gauge) 3850 yuan/ton; gasoline 97 # 3, 500 yuan/ton; gasoline 93 # 3, 100 yuan/ton; gasoline 90 # 2900 yuan/ton; diesel 0 # 3200 yuan/ton; -10 # diesel 3, 500 yuan/ton.
轻质油2000元/吨；二茂铁28000元/吨；二甲醚3000元/吨；氢氧化钠2600元/吨；硫醇18000元/吨；香精36000元/吨；轻烃碳五[密度0.60-0.63]2500元/吨；碳酸钠1000元/吨；双氧水1000元/吨；二甲苯4200元/吨；高锰酸钾5800元/吨；石油醚3500元/吨；石脑油2900元/吨；乙醇2800元/吨；干气4100元/吨；丁烷2500元/吨；丙酮4400元/吨；对苯二酚18000元/吨；天然液化气(6个压)3850元/吨；汽油97＃3500元/吨；汽油93＃3100元/吨；汽油90＃2900元/吨；柴油0＃3200元/吨；柴油-10＃3500元/吨。
It plans to produce 100000 ton of DME a year. Its technological route: it will use coal as material, adopt etherealization technology, sulfur transferring technology, NHD dehydrated sulfur、dehydrated carbon technology, methane technology, etc.
三、生产规模：年产二甲醚10万吨；技术路线，以煤为原料，采用德士古水煤浆加压气化技术；耐硫全低变变换技术；NHD脱硫、脱碳净化技术；甲烷化技术；浆态床液相合成二甲醚及其配套精馏技术。
Both frequently used mineral oils and ether oils can be used in DME refrigeration systems. The discharge temperature of DME systems in which ester oil is used is slightly higher than that of systems in which mineral oil is used. DME can be used directly to replace R134a. in R134a refrigeration systems.
通过对不同种类的润滑油的实验测试表明：常用的脂类油和矿物油均可用作二甲醚制冷系统的润滑油，使用脂类油时二甲醚排气温度比使用矿物油时稍高，矿物油更适于应用于二甲醚制冷系统。
Diabetic macular edema is is one of the main reasons for the visually impaired.
糖尿病黄斑水肿(diabetic macular edema，DME)是视力受损的主要原因之一。
DME is taken as city gas by three methods, being liquefied for pipeline gas, or being commixed with LPG for bottles, and with LPG and air for the peakvalue adjustment for city gas network.
其用作城镇燃气常见的方法有3种，即与液化石油气混合后装瓶；生产代天然气；用于小区管道气。
DME engine can achieve high efficiency, ultra-low emissions and soft compression combustion.
二甲醚燃料能够实现发动机高效、超低排放和柔和压缩燃烧。
To select an appropriate fuel lubricity improver for the engine operating on dimethyl ether, a lubricity improver of DME was prepared, its lubricating characteristics in different base test oils were studied and compared with other lubricity improvers on four ball tester and high frequency reciprocating ring.
采用四球机和高频往复试验机研究了一种二甲醚专用润滑性改进剂在不同基础试验液体中的润滑特性，考察了其与醚的互溶性能及对金属的腐蚀性能，并与其它润滑性改进剂进行了对比，从而为DME发动机选择合适的燃料润滑改进剂提供了依据。
The results indicate that the HCCI combustion fueled with DME consists of a low t...
结果表明，二甲醚均质压燃燃烧具有明显的两阶段放热特性，即低温反应放热和高温反应放热。
DME is dehydrated from methanol under catalyzer, and it also may be manufactured from separating gas produced by the combination of methanol.
DME是由甲醇在催化剂存在下脱水合成；也可以将甲醇合成时产生的气体分离精制制造。