To improve biological performance on titanium alloy surface, micro-arc oxidation method was used to prepare ceramic oxide layer containing calcium and phosphor on surface of Ti6Al4V alloy.

為了改善鈦合金表面的生物學(xué)性能717午夜福利视频网，試驗(yàn)采用微弧氧化的方法在Ti6Al4V合金的表面生成一層富含Ca和P的生物氧化薄膜黄色永久网站。

And the brakes are just as extraordinary, they're powerful enough to hurt, the carbon composite discs and their titanium callipers are able to

和剎車是同樣不平凡的亚洲一级性交大片，他們足夠強(qiáng)大的傷害91做a免费视频，碳纖維復(fù)合材料的光盤及其鈦卡尺能

The carbon-fibre discs provide brake pressure of up to 180 bars, combined with eight-piston monobloc callipers and titanium pistons fitted with fine steel heads and ceramic heat protectors.

碳纖維制動(dòng)壓力光盤提供高達(dá)180條，有八個(gè)結(jié)合活塞整體式活塞卡鉗和鈦鋼精美陶瓷頭和熱保護(hù)裝置欧美老熟女的性爱视频。

The critical sized defects of rat calvarium were made and the combined collagen membranes were used as guided bone regeneration membrane with BIO-OSS〓 compared with titanium and uncombined collagen membranes as control.

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A study of titanium carbide/metal micro-assembling was conducted in this work.

對(duì)金屬和碳化鈦的結(jié)構(gòu)微組裝進(jìn)行了研究亚洲欧美第一视频。

Effects of silicon and aluminum on the twin boundary energy of titanium carbide have been investigated.

TiC是一種典型的具有高層錯(cuò)能和孿晶界面能的材料涩涩视频欧美精品。

Yuan Xin card" carbon ferromanganese have been identified as the famous brand products in Shanxi Province,"Yuan Xin card for the titanium-iron powder was found in Shanxi Province, the security companies have been approved by State Economic and Trade Commission as a national pilot.

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The uncovered tracts and the liver wound surface were managed by some of the methods combined such as high frequency electrocoagulation, titanium clamp, suture, hemostatic gauze oppression, argon-beam coagulation, protein glue adherence, and Endo-GIA switcher. The total operative outcome, operating time, blood loss, postoperative complications and postoperative hospital stay were summarized in order to assess feasibility and safety of the clinical laparoscopic liver resection.Results: 1. Laparoscopic liver resection with clamp dissection method needs only the ordinary laparoscopic equipment. It has a low cost but causes a little more bleeding. 2. Laparoscopic liver resection operated by microwave tissue coagulation method had very little bleeding when dissecting hepatic parenchyma. The operative field is clear and the cost is low. It is a safe, convenient and effective method. 3. Ultrasound dissector is a relatively ideal appliance for laparoscopic liver resection at present because ofless bleeding during operation. But the speed is slow thus prolongs the operation time. Its separating intensity is not strong enough, and it can only be applied to patients without hepatic cirrhosis. 4. Ligsure has clamp dissection and electrocoagulation functions. It can carbonize hepatic tissue including the tracts whose diameters are less than 7mm. It has some advantage in dissecting. However, it has the shortcomings of the clamp dissector during coagulating. 5. Hand-assisted laparoscopic liver resection can make use of the flexibility and feeling of the operators left hand.

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