There is no rubber armor nor are there any covers to protect the objective lenses.
这两种望远镜均没有橡胶铠装，也没有提供用于保护物镜的物镜盖。
I'm also somewhat mystified at Pentax's failure to provide lens caps for the objective lenses.
另一样令我不解的是为何宾得不给物镜也配上镜头盖呢？
These cameras have the capability of wide temperature ranges and often include a variety of objective lenses in order to appropriately adjust the field-of-view.
这些相机的温度范围很大，通常包括一些物镜，可适当调整以适应外景。
Chromatic Aberration — usually associated with objective lenses of refractor telescopes, is the failure of a lens to bring light of different wavelengths (colors) to a common focus.
色差-经常在折射望远镜的物镜上出现，是因为透镜不能把不同波长(颜色)的光聚焦到一点而形成的。
The compound microscope consists of two convex lenses with short focal length, the objective and eyepiece lenses, fitted at opposite ends of a tube.
复合显微镜包括两个短焦距凸透镜，即位于镜筒两端的物镜和目镜。
Objective :To investigate the cleaning efficacy and dynamics of multi-solution on proteins deposited on hydrophilic contact lenses.
摘 要目的 ：研究市售的软镜多功能护理系统对镜片上蛋白质沉淀的清洗效果与动力学。
Objective To explore the practicability of red green blindness correction with red soft contact lenses.
目的探讨以软性角膜接触镜矫正红绿色盲的可行性。
Objective To evaluate the clinical effects of rigid gas permeable contact lenses (RGPLC) on myopia.
目的评价透气硬性角膜接触镜（RGP）的临床矫正效果及舒适程度。
Objective To study the effect of blue light absorbing intraocular lenses in senile cataract therapy.
目的探讨滤蓝光人工晶体在老年性白内障治疗中的作用。
Objective To understand the role that the standards for intraocular lenses has in ensuring clinical safety and effectiveness.
目的深入了解人工晶状体标准对保证临床应用安全有效的作用。
Objective: To investigate the effectiveness, safety and feasibility of using rigid gas permeable contact lenses (RGP) in young children.
目的：探讨低龄儿童配戴硬性接触镜(rgp)的有效性、可行性和安全性。
Objective To explore preventing and management of cataract surgery's complications of ECCE and intraocular lenses implantation at work of preventing and treating blindness.
目的对眼科住院医师实施白内障囊外摘除术及人工晶体植入术中，手术并发症的预防及处理能力培训探讨。
Objective to study the accurate methods to predict the post operative visual acuity of cataractous patients with different degrees of opaque lenses.
目的探讨准确评估晶状体不同混浊程度白内障患者术后视功能的方法。
Objective to observe the situation of implanted lenses in vivid eyes and postoperative visual acuity affected by the lens tilt and decentration.
目的观察后房型人工晶体在活体眼内的位置情况，倾斜、偏心对术后视力的影响。
Objective To investigate the curative effect of cataract extraction with intraocular lenses (IOL) implantation in venerable age patients.
目的探讨高龄老人白内障摘出联合人工晶状体植入术的临床疗效。
Objective To observe and analyze the relativity of adolescent dry eye syndrome with wearing contact lenses.
目的观察分析戴角膜接触镜与青年型干眼症的相关性。
Objective To evaluate accommodation and visual function after implantation of the 1CU accommodative posterior chamber intraocular lens and compare it to conventional intraocular lenses.
目的研究白内障超声乳化术联合植入1CU可调节人工晶状体眼的近点调节力，并与传统单焦人工晶状体眼作对比，对其术后患者视功能进行评估。
Objective: To investigate the antioxidases in the blood, aqueous humor and lenses of senile cataracts.
摘要目的：探讨老年性白内障患者血、房水、晶体中的抗氧化酶对晶体的保护作用。
Objective: To investigate the antioxidases in the blood, aqueous humor and lenses of senile cataracts.
摘要目的：探讨老年性白内障患者血、房水、晶体中的抗氧化酶对晶体的保护作用。
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