钝化表面的检测通常是通过查看金属表面的游离铁的踪迹来完成的。
Testing for a passive surface is usually accomplished by looking for traces of free iron on the metal surface.
假定如果没有探测到游离铁，则金属表面就是足够清洁以形成均一的氧化物膜的。
The assumption is made that if there is no detectable free iron, the metal surface is clean enough for a uniform oxide film to develop.
该标准声明：柠檬酸-硝酸钠处理在去除游离铁合其他金属污染和轻的表面污染物时，危险性最低。
The standard states that the citric acid-sodium nitrate treatment is the least hazardous for removal of free iron and other metallic contamination and light surface contamination.
金属呈游离态的很少。
将流动注射化学发光法与微透析采样技术联用，测定家兔血液中游离的金属离子浓度。
To couple microdialysis sampling with flow-injection chemiluminescence analysis for real time and on-line detection of concentration of free cr (III) in the blood of rabbit.
生长在重金属污染土壤中的植物通过积累游离脯氨酸和降低抗坏血酸含量等途径来减轻重金属的毒害。
The plants growed in the soil polluted with heavy metals could alleviate the heavy metal poison by accumulation of proline and reduction of antiscorbutic acid content and so on.
游离脯氨酸含量在植物对干旱，盐，寒冷，重金属或特定病原体的暴露下增加。
Free proline content can increase upon exposure of plants to drought, salinity, cold, heavy metals, or certain pathogens.
添加赤泥后随着土液比的降低各重金属的游离离子浓度的变化趋势与添加赤泥前一样。
With the decreasing of the soil solution ratio, the trend of change was the same after adding red muds into it.
金属蛋白酶、半胱氨酸蛋白酶在游离氨基酸的形成过程中起主要作用，丝氨酸蛋白酶次之；
The importance of the three endopeptidases contributing to the formation of AA-N was metallo-, cysteine, and serine peptidase in turn.
金属蛋白酶、半胱氨酸蛋白酶在游离氨基酸的形成过程中起主要作用，丝氨酸蛋白酶次之；
The importance of the three endopeptidases contributing to the formation of AA-N was metallo-, cysteine, and serine peptidase in turn.
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