查询词典 ion

Then the corresponding sigma matrix is given to further estimate the beam emittance extracted from electron cyclotron resonance ion source.

然后给出了相应的相椭圆系数矩阵来进一步估算从ECR离子源引出束流的发射度。

Examples are helicon discharge , electron cyclotron resonance, and ion cyclotron resonance.

例子有螺旋放电，电子回旋共振，以及离子回旋共振。

This simulation takes into account of the plasma bootstrap current ,ion cyclotron resonance heating and fast wave current drive.

模拟中考虑了自举电流，并加入了离子回旋共振加热ICRH和快波电流驱动FWCD，得到了中心电子温度4。

Ion cyclotron resonance heating is a necessary auxiliary heating method in EAST Tokomak nuclear fusion experiment.

离子回旋共振加热是EAST超导托卡马克核聚变实验中重要的辅助加热手段。

Aim To investigate the influence of ion density on the deposition of wurtzite GaN films on the substrate of α-Al2O3(0001) by electron cyclotron resonance plasma.

目的 研究在电子回旋共振等离子体辅助法生长GaN时的离子密度对其质量的影响。

The fragmentation pathways of these compounds are investigated by ESI-MSn and Fourier transform ion cyclotron resonance multiple-stage tandem mass spectrometry.

通过多极串联质谱和多极串联傅里叶变换回旋共振质谱法研究了它们的碎裂规律。

The key equipment of proton therapy system is ion source machine, include two types, cyclotron and synchrotron.

质子治疗系统主要的设备是射线源发生器，有回旋加速器和同步加速器两种。

The main products of low energy ion is formed by the incident 〓 reacted with molecule such as the cystine and tyrosine.

通过对低能离子辐照多种氨基酸的谱学研究表明低能离子辐照引发的氨基酸反应不同于其他辐射源。

Src l was an acidic cytolysin, which was reported forthe first time. The cDNA encoding the mature Src l was cloned into non-fusion expression vectorpBV220 and expressed successfully in E.coli DH5α in inclusion body. After washing anddenaturing-renaturing, the recombinant Src l protein was purified by Q Sepharose FastFlow ion exchange chromatograph and Phenyl Sepharose hydrophobic interactionchromatograph.

首先构建了Src I基因的非融合蛋白表达质粒pBV220-Src I，并成功地在原核细胞E.coli进行了重组表达，筛选出稳定表达的工程菌株DH5α，摸索了稳定表达的条件，摸索了包涵体的洗涤、变性和复性条件，摸索出了复性蛋白Src I的纯化工艺，纯化过程简单，经QSepharose Fast Flow阴离子交换层析和Phenyl Sepharose疏水层析两步纯化，就可获得了高纯度的重组蛋白样品(纯度达99％以上)，该纯化方法适合重组蛋白的大量纯化，为Src I的性质、结构和功能研究奠定了良好的基础。

The intermediate-basic volcanic rocks with SiO2 content less than 57.48 wt% are high in Al2O3(20.22-16.34 wt%) and K2O, enriched in large ion lithophile elements, show obvious Nb, Ta negative anomaly, these are same to the basalts which formed in island arc. The andesite, dacite and rhyolite rocks with SiO2 content between 62.11-75.19 wt%, are similar with the I-type granitic rocks formed in island arc in their geochemistry. It is suggested that the Jueluotage area of East Tianshan was in island arc setting during Late Carboniferous, when the subduction of the ancient Asian Ocean was in progress.

其中w(SiO2)小于57.48%的中基性火山岩具有高w(Al2O3)(16.34%~20.22%)，较富钾，富集大离子亲石元素，具明显的Nb、Ta负异常；w(SiO2)介于62.11%~75.19%之间的安山岩、英安岩和流纹岩岩石化学特征与准铝质的Ⅰ型花岗质岩石相似，其地球化学特征也反映出岛弧花岗岩的特点，表明东天山觉罗塔格地区路白山一带在晚石炭世仍处于古亚洲洋向南俯冲的岛弧环境。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。