sample composition是什么意思_sample composition中文

sample composition中文什么意思

样品构成

sample: n. 1.样品，货样。 2.标本；榜样，实例。 3.【统 ...
composition: n. 1.作文(法)，作诗(法)，作曲(法)；作品，文章 ...
composition of sample: 样本的构成
composition: n. 1.作文(法)，作诗(法)，作曲(法)；作品，文章；乐曲；文体，措辞。 2.编制；结构，构造，组成，组织；成分；合成物。 3.素质，性格。 4.构图，配合，布置。 5.妥协，和解(条件)；(私下了结的)和解费，(议定的)偿付额。 6.【印刷】排字。 7.【逻辑学】综合法，合成推理；【语法】复合法；【社会学】结合体。 Latin prose compositions 拉丁散文作品。 a stone composition石刻品。 He has not a spark of generosity in his composition. 他(性格中)一点肚量也没有。 a composition of 5sh. in the pound 每镑照赔五先令。 composition for violin 提琴曲。 composition of a picture 绘画构图。 composition of air 空气成分。 make a composition with (sb.'s creditors) 和(各债权人)议定偿还办法。
composition a: a炸药

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例句与用法

The spectral lines emitted from these species can be used to determine the sample composition . the wavelengths observed are characteristic of the individual elements present in the sample , and their intensities are related to the concentration of the corresponding species in the sample
高功率密度的激光使样品表面汽化，产生处于激发态的原子和离子，而激发态原子和离子的发射谱线可用于样品成分的鉴定，发射谱线的强度与该原子对应的元素在样品中的含量有关。
The sample composition was analyzed by means of tg and x - ray diffraction . the following conclusions can be drawn from the experiments : given conditions , the sample powder that has the same xrd data as the standard fetioa can be gotten when use any method mentioned above ; the key in synthesis is to avoid the oxidation of fe2 + , so the whole process should performed under vacuum or neutral atmosphere , samples used by this study were prepared under nitrogen atmosphere ; the heat - treated time and temperature have some influence on the sample powder , results show that the proper time and temperature is 120 minutes and 1100 respectively
研究结果表明：在合适的反应条件下，用上述三种合成方法都能得到xrd数据与标准fetio _ 3物相基本吻合的粉体；合成反应需要克服的主要问题是防止体系中fe ~ ( 2 + )的氧化，因此，整个反应必须在真空或者非氧化性气体保护下进行，本研究需要的样品是在高纯从保护下合成的；煅烧的时间和温度对最终的产物也有一定的影响，研究发现：合理的煅烧时间和温度分别为120分钟和1100 。

sample composition中文什么意思

例句与用法

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