An automated sequential injection system incorporating a sample pretreatment module was developed for the separation and preconcentration of ultra-trace copper in seawater without dilution.
将样品预处理模块与自动化顺序注射系统相结合，建立了未经稀释的海水中痕量铜的分离富集方法。
This paper presented the combustion characteristics of methanol with and without exhaust gas dilution conditions.
研究了甲醇燃料在有、无废气稀释情况下的燃烧特性。
Disadvantages of sublevel caving without sill pillar lie in high ore loss and dilution as well as difficult control of ore loss and dilution.
无底柱分段崩落采矿法存在损失贫化大和损失贫化难以控制的缺点。
High dilution for sublevel caving is caused by existing drawing mode. Using thd undilutiondrawing can greatly decrease the ore dilution below 8% without decreasing recovery.
无底柱分段崩落法贫化大是由现行放矿方式造成的，改用不贫化放矿后可使矿石贫化率在回采率不降低情况下大幅度下降到8％以下。
Flow injection serial dilution techniques was combined with atomic absorption spectrometry (AAS) techniques to determine Ca in acid rain without samples' dilution. This method was fast and simple.
提出了应用流动注射梯度稀释法与原子吸收光度法相结合，样品不经稀释便可同时测定酸雨中不同浓度的钙。方法快速简便。
DL 6550 is an elaborated and carefully balanced solvent, mainly indicated for solvent lacquers dilution. Combined with LS 6612, LS 6125, etc. It provides natural shiny, without risk of getting white.
DL 6550主要作为溶剂型光油的稀释剂，与LS 6612、LS 6125等配合使用后可赋予涂层自然的光泽，无涂层发白的现象。
DL 6550 is an elaborated and carefully balanced solvent, mainly indicated for solvent lacquers dilution. Combined with LS 6612, LS 6125, etc. It provides natural shiny, without risk of getting white.
DL 6550主要作为溶剂型光油的稀释剂，与LS 6612、LS 6125等配合使用后可赋予涂层自然的光泽，无涂层发白的现象。
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