The key technique to determine the ages of young volcanic rocks by K-Ar and 40Ar- 39Ar methods is how to avoid effects of excess argon and to raise the relative component of radiogenic argon.

用K -Ar和4 0 Ar- 39Ar方法測(cè)定年輕火山巖年齡的技術(shù)關(guān)鍵在于如何有效規(guī)避過剩氬的影響和提高放射成因氬的相對(duì)含量亚洲老年黄色毛片。

The SEM-EDS showed that the content of surface elements was changed after treated with glutaraldehyde or albumin indicated that argon plasma only had surface cleaning effect and did not change surface composition and the allylamine deposition thickness was too thin to show the difference in SEM-EDS findings. The XPS results confirmed the argon plasma cleaning effect and revealed that the ratio and the binding energy of surface elements changed with different treatment procedures and were similar to what expected to coat on the titanium surface.

XPS更進(jìn)一步證實(shí)福利影院地址，氬氣電漿只有清潔鈦金屬表面的作用色水在线，并不會(huì)改變其表面化學(xué)組成欧美日韩性爱视屏一；其余各組的鈦激情偷乱人伦视频、碳、氮午夜一级黄片、氧的比例及鍵結(jié)能量隨著處理程序而改變AV片网站在线观看com.，可知表面上有化學(xué)組成之改變，且隨不同處理程序所得到表面元素之百分比及鍵結(jié)能量国产成人男女在线观看网站视频免费，與預(yù)期的表面披覆物元素百分比及鍵結(jié)能量相近激情女人综合网。

Methods Immediately after branch retinal vein occlusion model was made by argon laser in 40 eyes of 20 normal rabbits, the rabbits were divided into two groups. In the first group,there were 10 rabbits treated with the argon laser followed by the Nd∶YAG laser induced chorioretinal venous anastomosis.

灰色家兔20只（40只眼）用氬激光建立視網(wǎng)膜分支靜脈阻塞模型，模型成功家兔隨機(jī)分為實(shí)驗(yàn)組10只（20只眼）久久免费美女黄片视频，用氬激光隨后用Nd∶YAG激光欧美性爱兔费网站；對(duì)照組10只（20只眼），單獨(dú)用氬激光誘發(fā)形成視網(wǎng)膜和脈絡(luò)膜靜脈間的吻合亚洲国产高清一区二区三区不卡。

Methods In order to realize portability for high-frequency argon-beam coagulatory devices, several high technologies were applied, including microelectronic technology, MCU automatic control technology, new technology of program-controlled high-frequency power switch and technology of argon-beam control for pressure and flow stability.

采用微電子技術(shù)高潮网址、單片機(jī)自動(dòng)控制技術(shù)、程控高頻開關(guān)電源新技術(shù)及氬氣穩(wěn)壓穩(wěn)流控制技術(shù)播放很快的你懂的的在线，多項(xiàng)高新技術(shù)應(yīng)用于氬束凝固止血器人人上人人肉人人插，實(shí)現(xiàn)了氬氣高頻止血設(shè)備便攜小型化。

All rocks release large fraction of argon between 300 and 700℃ except garnetiferous mica schist. The amount of argon released between 700 and 1100℃ has a positive relation to Ca/K value on the whole. The saturation implantation dose of rocks in this experiment is～10〓 ions/cm〓.

除含石榴石云母片巖氬放氣峰在900℃以外永久在线观看国产日韩va，其它巖石都在300-700℃放出大部分氬氣欧美18xxoo，所有巖石在1100℃以下都釋放了其中大部分的氬氣。700-1100℃放出的氬氣量基本與Ca/K呈正相關(guān)關(guān)系亚洲色影院网站。120keV氬離子注入多種巖石的飽和劑量為～10〓粒子/cm〓黄色网站大全入口。

The Nd: YAG laser iridotomy hemorrhage can be minimized by thor- ough coagulating burns of the target tissue from an argon laser. The initial several argon laser burns may cause iris vessels congested and result in more severe bleeding during the succedent Nd: YAG laser shots.

三、先用氬激光熱凝虹膜黄色视频国产在线，能否減少后繼Nd：YAG激光擊射所致的虹膜出血天天摸人人操人人爱，取決于組織的熱凝固程度，如熱凝不充分操屄A∨，基質(zhì)血管擴(kuò)張充血99国内精品人人操，反有加重出血程度的可能精品资源在线。

In the rabbits, every Nd: YAG laser iridotomy smaller than 200μm and argon laser iridotomy, Nd: YAG laser combined with argon laser iridoto- my smaller than 450μm closed by the first postoperative week. The mecha- nism for iridotomy closure was assumed to be iris pigment epithelial prolifera- tion, migration and the reformation of stromal connective tissue once the pos- terior pigmented cells have initially bridged the iridotomy.

四、兔眼虹膜激光損傷后的修復(fù)能力較強(qiáng)无码小视频在线观看，小于200μm的Nd：YAG激光孔及小于450μm的氬激光人人干人人插人人插人人操、Nd：YAG激光聯(lián)合氬激光孔均在術(shù)后1周內(nèi)關(guān)閉，前者以基質(zhì)膠原結(jié)締組織再生較明顯26uuu色噜噜在线播放，而后者以色素上皮增殖亚洲国产成a人v在线观看、遷移為著。

Methyl methacrylate were passed through an alumina column, dried over molecular sieves, deaerated by bubbling argon and stored under argon.

這個(gè)氧化鋁柱為我沒用過日本体内she精3汇编，是什么樣的呢日本大乱交？在一個(gè)玻璃柱里填充氧化鋁可以嗎？

In this article,through introducing the automatic argon arc weld ing equipment and the method of selecting the parameters,it was proved that the technique of automatic argon arc weld is one of the best methods to enhance the weld quality and efficiency.

通過對(duì)全自動(dòng)氬弧焊設(shè)備及工藝參數(shù)的選擇方法的介紹在线观看AV麻豆，說明全自動(dòng)氬弧焊技術(shù)是提高焊接質(zhì)量和效率的最佳方法之

The paper has studied systematically fluid flow behaviors in argon blowing process in ladle furnace and told more suitable position and quantity for blowing argon by means of water model and mathematical simulation, according to the Ladle Furnace of Shi Jiazhuang Iron and Steel Corporation. And it optimized the ladle construction and fluid flow behaviors, so it provided the molten steel with perfect temperature and composition.

本文針對(duì)石家莊鋼鐵有限公司LF-鋼包精煉爐五月丁香天天色综合，利用水模型和數(shù)學(xué)模型模擬，系統(tǒng)研究了LF吹氬過程中鋼液的流動(dòng)行為在线看片免费人成视频久网不卡，確定了最佳的鋼包吹氬位置以及適宜的吹氬氣量色综合网久久，改善了鋼包結(jié)構(gòu)，優(yōu)化了鋼液流動(dòng)狀態(tài)人人操天天操老太大逼人人操，為連鑄工序提供具有理想溫度和成分的鋼水奠定了技術(shù)基礎(chǔ)免费高清无码在线视频。