查询词典 laser

Abstract］ objective to evaluate the use of a pressure phosphene tonometer in measuring intraocular pressure after laser in situ keratomileusis. methods fifty eyes of 25 consecutive patients who underwent lasik surgery were enrolled in this study. among them, 12 were male and 13 were female.

目的 评价压眼闪光眼压计(pressure phosphene onometer，ppt)在准分子激光原位角膜磨镶术（laser in situ keratomileusis，lasik手术前后测量结果的准确性，并与非接触式眼压计（noncontact tonometer，nct）相比较，探讨其临床应用价值。

With the development of optical design and micro-fabrication, the application of diffraction optical elementin laser rada sytem is desiderate.

laser radar ；随着光学技术发展，微细加工工艺的提高，衍射光学器件在激光雷达系统中的应用需求日益显现。

To produce the scientific evidence for developing and manufacturing new antitumor drugs.Methods: 1 The inhibitory effect on cell growth of Hela was measured by MTT assay in treated or untreated groups (3.125, 6.25, 12.5, 25, 50μg/ml TAM and control) for three different treatment times (24h, 48h and 72h).2 Apoptosis and cell cycle were measured by FCM in four experimental groups (0, 4, 16, 40μg/ml TAM) for 48h.3 Adopting Wright and Giemse's staining to observe the morphology of Hela cells which treated with 40μg/ml TAM.4 Using invasion experiment to detect the Hela cells'invasive abilities which treated with 40μg/ml TAM.5 The protein expressional levels of P-ERK, ERK, C-myc and Cyclin D1 in Hela cells untreated or treated with 4, 16, 40μg/ml TAM for 24h were measured by Western blot.6 Expression of anti-apoptotic gene bcl-2, apoptotic gene bax and MMP-9 in Hela cells of four experimental groups (0, 4, 16, 40μg/ml TAM for 24h), were observed by revers transcription PCR.7 The protein expression of P-ERK, ERK, Bcl-2 and Bax in Hela cells treated with 40μg/ml TAM for 24h observed by laser scanning microscopes.

1采用四甲基偶氮唑蓝法检测不同浓度北豆根总碱(3.125、6.25、12.5、25、50μg/ml)处理不同时间(24、48和72小时)对Hela细胞增殖反应的抑制作用。2采用流式细胞技术(flow cytometry，FCM)检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用48小时，对Hela细胞凋亡及周期变化的影响。3瑞氏-姬姆萨染色后显微镜观察北豆根总碱(0、40μg/ml)作用24小时后Hela细胞形态学变化。4采用Transwell小室法检测北豆根总碱(0、40μg/ml)作用24小时后对Hela细胞侵袭性的影响。5采用免疫印迹方法检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用24小时后，Hela细胞中磷酸化ERK、ERK、C-myc、CyclinD1的表达变化。6采用逆转录-聚合酶链反应(revers transcription PCR，RT-PCR)半定量检测北豆根总碱(0、4、16、40μg/ml)作用24小时，Hela细胞抗凋亡基因bcl-2、促凋亡基因bax、基质金属蛋白酶-9(MMP-9)的表达变化。7应用激光共聚焦显微镜(laser scanning microscope，LSM)观察北豆根总碱(0、40μg/ml)作用24小时后，Hela细胞内P-ERK、ERK、Bcl-2、Bax蛋白的表达变化。

As the standard-bearer of the photonics industry, LASER World of PHOTONICS both in Munich and Shanghai have been renowned as the annual extravaganzas in this field.

作为激光、光学、光电行业的风向标，慕尼黑和上海的LASER品牌展会已成为了该行业的年度盛会。

Out-of-plane displacement and tolerance can be measured by integrating Mirau microscopic interferometry with stroboscopic photography, and the repeatable accuracy of out-of-plane displacement is 3 nm. Laser Doppler vibrator has an advantage of analyzing the motion in frequency domain, and it is the complementarity of measuring periodic motion in time domain.

标 签 光学测量微结构动态特性计算机微视觉米劳显微干涉频闪成像激光多普勒测振 optical measurement micro-structure dynamic characteristics computer micro-vision Mirau microscopic interferometry stroboscopic photography laser Doppler vibrometer

Thefirst commercially available laserdisc system was available on themarket late in 1978 (then called Laser Videodisc and the more funkilybranded DiscoVision) and were 11.81 inches (30 cm) in diameter.

第一个上市的雷射影碟系统在 1978 年。那时称之为 Laser Videodisc 雷射影像碟片），或是有趣的 DiscoVision。

In all cases, US Laser will be the sole judge as to what constitutes warrantable damage.

在所有情况下，对构成可保修的损害的因素，US Laser是唯一的鉴定人。

Abstract］ Objective To identify the reasons why ametropic patients did not undergo laser in situ keratomileusis after they had received a standard pre-operative examination.

目的 分析屈光不正患者已接受准分子激光原位角膜磨镶术（laser in situ keratomileusis，LASIK）术前常规检查后最终未实施手术治疗的原因。

Abstract］ Objective To study the influence of different residual cornea bed of laser in situ keratomileusis on the collagenic construction of cornea through investigating the expression of matrix metalloproteinases and tissue inhibitors of metalloproteinases in cornea cells for different residual stroma bed after LASIK for six months.

目的 研究不同切削厚度的准分子激光原位角膜磨镶术（laser in situ keratomileusis，LASIK）后兔眼基质金属蛋白酶（matrix metalloproteinases，MMPs）及基质金属蛋白酶组织抑制剂(tissue inhibitors of metalloproteinases，TIMPs)的表达，以探讨LASIK手术的不同切削深度对角膜的胶原结构的影响。

Objective To evaluate the efficacy of endovenous laser treatment in the treatment of varicose veins in lower limbs.

目的 总结静脉腔内激光治疗（endovenous laser treatment，EVLT）下肢静脉曲张的疗效和术后并发症。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。