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The preparation method is characterized in that:(1) at minus 10 DEG C to 10 DEG C, a chloroauric acid solution with a certain concentration is added into a nano-Pt/C catalyst by ultrasonic or stirring mixture and the atomic ratio of Pt to Au is controlled between 18:1 and 5:1;(2) a small amount of monohydric alcohol or dihydric alcohol or trihydric alcohol of C1-C3 is added and is stirred at minus 10 DEG C to 10 DEG C for 10 min to 5h, so as to prepare the carbon-loading Pt-Au bimetallic nano electro-catalyst;(3) if necessary, the catalyst obtained by the step (2) is treated for 0.5 to 4h at high temperature ranging from 100 DEG C to 700 DEG C in the inert or reducing atmosphere, so as to adjust and control the grain size of the Pt-Au bimetallic nano electro-catalyst.

本发明涉及了一种高稳定性碳载Pt-Au双金属纳米电催化剂的制备方法，其特征在于：(1)在-10～10℃中，将一定浓度氯金酸溶液加入到纳米Pt/C催化剂中经超声或搅拌混合，控制Pt∶Au的原子比为18∶1-5∶1；(2)添加少量C 1 -C 3 的一元、二元或三元醇类，在-10～10℃下搅拌10min-5h，制备了碳载铂金双金属纳米电催化剂；(3)视需要，可将步骤(2)得到的催化剂在惰性气氛或还原气氛中经100～700℃高温处理0.5-4h，可调控Pt-Au/C双金属纳米催化剂的粒径。

Pre-clean the surface, degrease agent will be used to remove the oil on the floor if necessary.

预清洁表面，必要时使用清洗剂除去表面油污

B "groot": If necessary, correct the grub root.

b&groot&：如果必须的话，就修正grub根的设定。

In the light of existent problems, the following suggestions are put forward: The erosion-resisting grouting material and small W/C ratio shall be applied, and the chemical grouts may be used if necessary.

针对存在的问题，提出了防渗灌浆材料应选用抗侵蚀性材料、采用小水灰比浆液、必要时用化学浆液等建议。

A person's former or alternative name or title is indicated only if necessary or to avoid confusion: michael tippett, laurence olivier, lord home of the hirsel (then sir alec douglas-home).

曾用名、别名或头衔仅在确属必要或为了避免混淆的情况下才注出：迈克尔·蒂皮特、劳伦斯·奥利维尔、赫塞尔·霍姆勋爵(曾为亚历克·道格拉斯·霍姆爵士)。

Answer ingoing calling politely and make related record if necessary.

接听电话、妥当应答，如有必要，做好电话记录

Answer ingoing calling politely make related record if necessary.

接听电话、妥当应答，如有必要，做好电话记录

D. If necessary, extend the incision distally along the medial side of the calf by continuing the dissection in the same intermuscular plane.

如果需要，还可沿小腿内侧向远端延长切口，并在同一肌间隙内继续解剖。

If necessary, partial manubrial resection preserving the sternoclavicular joints was performed to extend the exposure.

假如需要，可行保留胸锁关节的部分胸骨柄切除来扩大暴露范围。

Craniocaudal view and mediolateral oblique were conducted for each patient.If necessary,mediolateral view or spot view was operated. All cases take plain scanner and contrast-enchanced scanner with use of a helical CT (Somatom AR.SP).For a patient,a field view was chosen that field depict the whole breast,as well as the ipsilateral axillary and internal mammary chains.

SP螺旋CT机进行平扫和增强扫描，扫描范围从腋窝顶部至乳房下界。23例全部采用增强扫描，分别在注射造影剂100ml后30s、60s、90s时进行动脉相、静脉相、延迟相CT扫描，病人采用俯卧位，上胸及腹部垫高，使乳房自然下垂，双臂交叉放在头上。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。