It would be more efficient to burn better quality coal that left less ash, he said.
他表示燃烧优质且余烬少的媒会更有效率。
In most areas, the ash contains less uranium than some common rocks.
在大部分地区，浮尘含有的含有的铀比普通岩石中的含量还低。
But at a site 50km east of the eruption, 24% of the ash falling to the ground was in the form of particles 10 microns or less in size.
但在喷发地点东部50千米处，24%的落地灰尘颗粒却小于或等于10微米。
The Lincang coal ash holds much less, about 300ppm.
临沧煤灰的铀含量比这少得多，大约有300ppm。
Such ash is less likely to poison water if the body of water is large, as then it can dilute any heavy metals in the ash.
如果水体广阔的话，这样的火山灰是不大可能污染水流的，因为它可以稀释火山灰里的重金属。
Biomass pellet machine solid fuel low ash low sulfur, nitrogen oxides, sulfur dioxide, carbon dioxide and soot particle emissions is far less than coal-fired power generation.
生物质颗粒机固体燃料低灰低硫，氮氧化物、二氧化硫、二氧化碳以及烟尘颗粒的排放远低于燃煤发电。
The optimization content of the fly ash was less than 40% from the strength consideration.
从强度方面考虑，粉煤灰的掺量最好在40%以下。
The results indicated that high C3S cement had higher strength and less drying shrinkage and can largely utilize fly ash (up to 40% of fly ash may be added).
结果表明，高c3s水泥具有较高的强度和较小的干缩，可大量利用粉煤灰(掺量可达40%)。
The ash content of the Pinus tabulaeformis branches is less than 0.52 % in the northwest margin areas.
城区西北边缘的公园区灰分含量最低，其值小于0 .52 % 。
Less ash than that would knock out electrical power and relay stations.
而火山灰数量稍少的地区，电力站与通讯中继站可能会遭到破坏。
Current research and application for mineral admixtures are more about fly ash, slag and silica fume, and less about metakaolin.
目前研究和应用较多的矿物掺合料是矿渣、粉煤灰和硅灰，而对偏高岭土的应用研究较少。
The influence of the density on the damping of fine coal ash is much less.
密度对细煤灰土阻尼的影响不明显。
The invention has the advantages of low heat dissipating, less pollution, saving trouble and labor for ash unloading, and is an ideal automatic ash unloading device.
本发明具有热量散失小、污染少、卸灰省事省力的特点，是一种理想的自动卸灰装置。
The results indicate that the dry contraction coefficients of lean concrete is less than common concrete, and it will be reduced when the high quality fly ash is added in the lean concrete.
结果表明，贫混凝土的干缩小于普通混凝土，而且掺加优质粉煤灰后，可降低收缩值。
When the direction of absorbing water is upright to expanded direction, the absorbing water speed and weight of the fly ash aerated concrete is less than common sintered clay brick.
吸水方向垂直于加气混凝土膨胀方向时，粉煤灰加气混凝土的吸水速度和吸水量小于粘土砖。
But coal blend ratio should be less than 5% for higher content of brown coal ash.
但由于褐煤的灰分较高，所以配煤比例不宜超过5%。
As the stone waste powder had less the active ingredient, Using the stone waste powder to replace small or all of fly ash would reduce the later strength of the mortar.
由于废石粉中活性成分较少，所以用废石粉部分或全部取代粉煤灰时，会使砂浆后期强度降低。
Comparisons with the chronical records of the volcanic ash layers contained in the middle upper part of the core suggest an age error less than 3%.
与冰芯中上部含深褐色火山灰冰层的历史记录年代相比误差小于3%。
No coking particle in SBP, so it has low ash (less than 0.01%), not to cause pollution of hard metal products.
SBP没有焦化粒子的存在，所以灰份低(0.01%以下)故不会引起硬质合金产品赃化。
The extraction toxicity of the heavy metals in ash is less than the regulation values of the identification standard for hazardous wastes.
灰渣中重金属的浸出毒性低于危险废物浸出毒性鉴别标准中的限定值。
The extraction toxicity of the heavy metals in ash is less than the regulation values of the identification standard for hazardous wastes.
灰渣中重金属的浸出毒性低于危险废物浸出毒性鉴别标准中的限定值。
应用推荐