查询词典 nm.

Experimental results indicate that the mean standard deviation of measurement repetition is 40 nm.

实验结果表明，该方法的测量重复性达40 nm。

The results show that the chief mineral is diaspore(size of 5 ~20 nm) and the iron minerals are hematite and limonite mainly, whose sizes are 0.5~3.0 mm.

研究结果表明： 2个样品中的铝矿物为晶体粒度细小的一水硬铝石(粒度为5~20 nm)；铁矿物主要为赤铁矿和褐铁矿，铁矿物嵌布粒度相对较粗(粒度为0.5~3.0 mm)。

To test the respirators fitness, we used quantitative fit test system to measure the fitness of the three models of new respirators worn by real person. The testing method is to use a differential mobility analyzer to select the particles of 40nm in diameter. N95 respirators are capable of filtering out almost all 40nm particles, therefore, the 40 nm particles measured within the respirator would be considered due to the leakage caused by poor fitness.

口罩密合度是使用定量密合度测试组合系统以真人分别配戴三款五年口罩A、B与C和同样型号新口罩来测试其密合度，测试方法主要是利用差异电移动度分析仪筛选粒径为40nm的微粒，而N95口罩的特性几乎可以完全过滤40 nm的微粒，所以口罩内量测到40nm粒径的微粒可被认定是泄漏造成。

The composite film appeared semitransparent and brown to yellow from optical microscopy. Results show that shorter time sol-heating results in thiner film with less surface roughness, less conglutination to base, and easily to disconnect, while longer time sol-heating results in thicker film with better conglutination to base and worse roughness. RDX distributes in the film everywhere on the whole but discretely on the scale of 2.4 μm according to EDS results. XRD curve of RDX/RF film shows the superposition of RF non-crystal bread curve and RDX crystals diffraction curve. RDX diffraction peaks are broadened and its crystal size is calculated to be lower to 43 nm.

实验所得薄膜半透明，呈棕红色至黄色；实验表明，溶胶恒温加热时间较短时，所得薄膜的单层厚度较小，较平整，但附着力小，干燥后易脱落；恒温加热时间较长时，所得薄膜的单层厚度较大，不易脱落，但表面平整性较差；能谱测试表明，薄膜中的RDX整体上分布较为均匀，但在测试点位间距为2.4μm的微观尺度上呈离散状分布；XRD测试表明，RDX/RF复合物薄膜表现为RF的非晶态馒头峰与RDX衍射峰的叠加，RDX衍射峰明显宽化，其晶粒度可低至43 nm。

The first-order diffraction efficiency of the grating was measured using a 532 nm laser,the highest of which was 6.98%.

用波长为532 nm的激光照射光栅，测量其一级衍射效率，测得的衍射效率最高为6.98%。

The solid compound enzyme was used in the determination of sodium fructose diphosphate by absorption change of NADH at 340 nm.

在固体复合酶作用下，通过测量还原型辅酶Ⅰ在340 nm处吸收度的变化来测定果糖二磷酸的含量。

Photocatalytic decomposition of H_2S in liquid phase and direct decomposition of H_2S to produce H_2 in gas phase were studied under ultraviolet light with the characteristic wavelength of 253.7 nm.

本文以特征波长为253.7 nm的紫外光作为光源，进行了紫外光液相直接分解H_2S制氢和催化分解H_2S制氢以及气相直接分解H_2S制氢的研究。

The concentration of cancer antigen is directly proportional to the color intensity measured at 450 nm.

随着颜色的变化，肿瘤标记的浓度与 450 nm 时测得的颜色强度直接成正比。

Methods: The analytical column was SHIMADZU VP-ODS C18 column(4.6 mm×150 mm, 5 μm) with a mobile phase consisted of 0.05 mol/L disodium hydrogen phosphate solution(85% phosphoric acid solution with pH adjustment to 2.5)-acetonitrile-methanol(42.5∶47.5∶10) at the flow rate of 1.0 ml/min, the detection wavelength was set at 254 nm.

色谱柱为SHIMADZU VP-ODS C18柱(4.6 mm×150 mm，5 μm)，流动相为0.05 mol/L磷酸氢二钠溶液(用85%磷酸溶液调节pH值至2.5)-乙腈-甲醇(42.5∶47.5∶10)，流速为1.0 ml/min，检测波长为254 nm。

Methods: The analytical column was SHIMADZU VP-ODS C18 column(4.6 mm×150 mm 5 μm) with a mobile phase consisted of 0.05 mol/L disodium hydrogen phosphate solution(85% phosphoric acid solution with pH adjustment to 2.5)-acetonitrile-methanol(42.5∶47.5∶10) at the flow rate of 1.0 ml/min the detection wavelength was set at 254 nm.

目的：建立丙酸氯倍他索尿素乳膏中丙酸氯倍他索含量的HPLC测定方法。方法：色谱柱为SHIMADZU VP-ODS C18柱(4.6 mm×150 mm5 μm)流动相为0.05 mol/L磷酸氢二钠溶液(用85%磷酸溶液调节pH值至2.5)-乙腈-甲醇(42.5∶47.5∶10)流速为1.0 ml/min 检测波长为254 nm。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。