查询词典 contact lens

If the convex surface of a lens is placed in contact with a plane glass plate, as in Fig. 41-9, a thin film of air is formed between the two surfaces.

如果一个凸面镜放置于平面玻璃的一个接触点上，如图41-9所示，在它们两者的表面形成一层空气薄膜。

The mechanical measurement is to use an indicator to measure the surface or the edge of the testing lens mounted in a specific holder in a contact way. The principle of the optical measurement is the geometric optics, utilizing the properties of refraction or reflection of light to detect the centering error of the testing elements in a contactless way.

机械式的测量是利用指示器配合治具对待测透镜之外缘或表面进行接触式测量；而光学式的测量原理则是利用几何光学的折射或反射性质，对待测元件进行非接触式的偏心误差量测。

Adolph Fick first thought of making glass contact lenses in 1888, but it took until 1948 when Kevin Tuohy invented the soft plastic lens for contacts to become a reality.

阿道夫·菲克在1888年第一个提出了隐型眼镜的想法，但直到1948年凯文·突郎伊发明了软胶镜片后才使之成为现实。

To obtain precise result, itis necessary, in the aspect of hardware, to set up one stable optics system with highSNR, only if so, can we do the measurement with the steady NIR. To do so, we designthe optics system using AOTF, and take some measures to increase the light energyand the system SNR, which includes the three layers structure of the light chamber,the equipments to cover the useless light, polarizing to reduce the influence of 0 gradelight and focalize the light with lens. Apart from the hardware aspect, according to theexperiments, we can see that the different temperatures between at setting up themodels and at predicting the results will affect the prediction results in a way, and theaffection extent will be increased along with the increase of the temperaturedifference. Moreover, the light energy that can be detected will be different with thecontact pressure, and the match of the refractive indexes between the tissue and thesurroundings will enhance the light transmission depth, which will take moreinformation of the tissue. So, during the measurement, we should ensure the sametemperature between measuring and predicting, the same contact pressure at everymeasurement and the match of the indexes between the tissue and the surroundings aspossible as we can.

要提高测量精度，从硬件方面就必须有一个稳定的、信噪比较高的分光光路系统，以此得到稳定的近红外光来进行无创检测，针对这个目的，我们设计了 AOTF 分光光路系统，并在系统中采用一定的措施如三层灯室结构、遮光筒以减小杂散光、起偏和检偏来减小 0 级光影响、透镜汇聚等等来提高出射光的能量和系统的信噪比；从其他影响因素方面，通过实验，我们得到不同的建模温度对于预测结果有一定的影响，且影响随着温度的差值越大而越大，另外散反射光谱的能量也随着接触压力的不同而不同，组织的折射率与环境匹配将加大光的入射深度，从而能携带更多的组织信息，所以在测量时我们尽可能保证同一温度、保证同一接触压力以及利用物理或者化学的方法使组织与环境折射率匹配等。

Primary and high school students are undergoing fast physical development the visual axis hasn't jelled yet wearing contact lenses too early or too much could generate the side effects such as the hypoxia of cornea and the disturbance of physiological metabolism. It will cause secondary bacterial pneumonia if the lenses are not cleaned and sterilized completely. The maladjustment of lens labyrinth and cornea would also wear out the corneaexfoliate the endepidermis even can lead to the corneal ulceration and perforation .

中小学生正处在生长发育旺盛时期，眼球视轴尚未定形，若过早或较长时间连续配戴隐形眼镜易产生角膜缺氧和生理代谢障碍等副作用；镜片清洗消毒不严，则会继发感染；镜片曲径若与角膜不相适应，还会造成角膜磨损，上皮脱落，严峻者会导致角膜溃疡或穿孔。

In this case, since the annular walls of both of the mold member 1 and the projected member 16 are brought to a contact state in the absence of the lens materials, burr is not generated.

在这情况，自两个模子成员 1 都的环形墙壁和被计画的成员 16 以后缺乏透镜材料被带来到连络州，粗刻边不被产生。

In fact, so far, ophthalmologists are not convinced that any kind of contact lens solution is absolutely no side effects.

事实上，到目前为止，眼科专家并不认为任何一种隐形眼镜药水是完全没有副作用。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。