1·Compared with oil produced by coal, methanol and DME have the obvious advantage in technology and economic.
与煤制油相比，甲醇和二甲醚具有明显的技术和经济优势。
2·In addition to the significant merit of no soot emission, DME would be of better ignition quality, lower autoignition temperature and better atomization compared to diesel fuel.
除了无碳烟排放的重要特点以外，和柴油相比二甲醚还具有较好的燃烧性能、较低的自燃温度和较好的雾化特性。
3·The process conditions for producing high purity DME of aerosol grade by catalytic dehydration of methanol in gas phase were studied and tested by using alumina as a catalyst.
以甲醇为原料，氧化铝为催化剂，对甲醇气相催化脱水制气雾剂级高纯二甲醚的工艺条件进行了试验研究。
4·The deed of transfer in terms of which the DME alienated the mineral rights defined these as certain 20 unnumbered base mineral claims.
契约中的条款，其中二甲醚疏远了矿业权定义了这些如某些矿物索赔20门牌基地转移。
5·This can only mean that the Minister and officials of the DME, when granting the permit, and approving the environmental management plan, were alive to that fact.
这只能意味着部长和二甲醚，在批准的许可，审批的环境管理计划的官员，还活着这个事实。