查询词典 hf

Characteristics: Electrode antiseize function Computer automatically delay the unaspirated HF / touch igniting function W-automatic function Xiaoqiu From the Arc / pit filled arc current adjustable Overheating instructions, overload protection, a thermostatically controlled fan, the self-inspection failure Welder software upgrade Technical parameters: Equipped with closed-loop water-cooling system Welding current: 3 - 400 amperes Voltage: 10.1 - 22.0 V

特性： 电极防粘功能电脑自动延缓送气高频/接触引弧功能钨针自动削球功能起弧/填弧坑电流可调过热指示，过载保护，温控风扇，故障自检焊机软件升级技术参数：配备闭环式水冷却系统焊接电流： 3 -- 400安培工作电压： 10.1 -- 22.0 V

The elements detected by EDAX revealed that the content of Cu, Fe and Cr in etched region was obviously greater than that in an unetched region where the Cu and Fe were segregated from the foils as the impurity and the Cr was induced from formed conversion coating.

采用SEM和EDAX技术，分析了铝箔在HCl、H〓SO〓、〓、HF混合液中恒流腐蚀后的表面形貌和元素分布，发现最初的蚀孔呈团簇状分布，而随着时间增加，蚀孔转变为均匀分布。

The electronic structures and the non-linear optical properties of bis schiff base and their derivatives have been studied using FF/HF method.The effects of electron donor/acceptor on nonlinear optical property were examined at the molecular level.As a result,the NLO coefficients of the substituted compounds are all larger than the unsubstituted compound.Among them, the β value of compound 4 is the largest one.

自1961年激光发现以来，非线性光学和非线性光学材料迅速发展起来[1～4]，随着光通讯、光电子学和光信息处理等在实际中的应用，对非线性光学材料的理论与实验研究进一步展开，寻找和设计具有较大非线性光学系数，超快光学响应，较低的光学损伤阈值，良好的化学稳定性和热稳定性的非线性光学材料成为这一领域的主题[5～12]。

Moreover, overpression of Wnt10b in the organ culture of vibrissae HF has been manipulated by infected the recombinant adenovirus expressed Wnt10b protein(Adwnt10b).

Ki67在毛母质中的表达变化规律以及在毛母质中的表达部位与Wnt10b具有一致性。2、我们对Wnt10b重组腺病毒进行了逐级扩增并应用氯化铯超高速密度梯度离心法纯化，病毒最终滴度达到109 PFU/ml；3、首次发现加入Wnt10b重组腺病毒可明显促进体外器官培养的触须毛囊毛干和内根鞘生长，这与本课题组在在体动物实验中发现的现象一致。

We dso found various clinical features and pathological cause of IMN WESE associated with MHC class Ⅱ genes.

在单倍型分析中：HLA-DR2-DQA1*0101在IMN组频率最高（Hf=12.80）呈强连锁不平衡，IMN临床特征与病理类型轻重与MHC-Ⅱ类关联。

The arc is usually started by HF sparks which ionise the gap between the electrode and the workpiece.

电弧通常由高频火花电离电极和工件的间隙产生。

The HF sparks will cause the electrode - workpiece gap to break down or ionise.

高频火花将造成电极/工件间隙破坏或电离。

The ability to work in HF and packet modes at the same time gives operators a real advantage in contesting.

工作能力，在高频和包模式，在同一时间，使运营商真正的优势，在争夺。

The inestigators say that these deices should now be considered in similar ambulatory NYHA class I HF patients.

研究者说现在这些装置在未住院的NYHA心功能I级的心衰病人也应被考虑使用。

Some research was dealed with in multirate signal process and digitizes the channel from IF, 455 KHz, to base band in HF system.

本文对多采样率信号处理理论作了一定的研究，并在455KHz中频到基带的信道上实现了数字化。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。