...和PO4^3-P浓度自上覆水向下层间隙水呈先升后降趋势，反映它们有自间隙水向上覆水扩散的潜在危害；底泥有机质（Loss-on-Ignition，LOI）、APA和FDA活性也有从表层底泥向下层逐步降低的趋势．在空间分布上，NH4+-N、PO4^3-P浓...
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Loss on ignition 烧失量 ; 烧失重 ; 灼烧失重 ; 灼烧减量
loss on ignition of talc [矿业] 滑石烧失量
total loss on ignition 燃烧总热损失 ; 灼失总量
loss on ignition of pigment 颜料灼烧减量
以上来源于: WordNet
Improper combustion, due to a rich mixture, defective ignition system, loss of compression in the engine, a cold engine, and so forth, will result in carbon deposits on the exhaust valves.
因混合气过浓、点火系统有故障、发动机内压力损失、冷机等导致的不正常燃烧都会形成气门积炭。
Effects of quality index, which are volcanic ash activity, loss on ignition, fineness and water demand ratio, on quality of fly ash are expatiated, the requests to quality of fly ash are put forward.
阐述了火山灰活性、烧失量、细度和需水量比等品质指标对粉煤灰质量的影响，对粉煤灰品质提出了要求。
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