查询词典 concave lens

Methods: A -20D concave or -10D concave lens was worn over the right eye in 30 fourweek old pigmented guinea pigs.

选健康4周龄豚鼠45只，随机分成3组，Ⅰ组（右眼配戴-20D）、Ⅱ组（右眼配戴-10D）Ⅲ组。

A Galilean telescope is defined as having one convex lens and one concave lens.

阿伽利略望远镜的定义是一个凸透镜和一个凹透镜。

Convex lens and concave lens are two tpyes of familiar lenses.

常见的透镜有凸透镜和凹透镜两种。

An approach is proposed, which emphasizes the importance of concave lens which can scatter the laser and make it an ideal signal source to be captured by the CCD lens. Thus, the measurement would be more precise, taking full advantage of the laser.

本文提出以凹透镜散射法将待测光源转化为镜头可以直接捕捉的理想光源，从而大大提高了点的测量精度，充分利用了激光作为信号源所体现的优势。

Just as a double convex lens enlarges, so a double concave lens reduces.

正象双凸透镜可以放大那样，双凹透镜也可以缩小。

After the first spacer is in place and dry, place the concave side of the objective lens flush against it, and put the other spacer snugly against the lens to hold it in place (again using the drill - glue method).

在第一次间隔到位，干燥，放置在物镜反对冲凹侧，并提出对镜头的其他间隔紧贴举行的地方。

By using the transfer matrix of the beam propagation,the movement of the low-order nonlinear ghost image s was calculated when high-power Gaussian laser beam passes through the single convexo-convex lens,the single concavo-concave lens and the 4F system and then the movable rules were analyzed.

采用矩阵光学方法，计算了高功率高斯光束通过单个凸透镜、单个凹透镜及 4F系统时低阶非线性鬼像的移动，并分析了其移动规

The above-described configuration of the zoom lens system allows appropriate setting of the imaging magnification of the fourth lens unit and the focal lengths of the third and fourth lens units.

变焦镜头系统的上述结构允许适当设定第四透镜单元的图像放大率以及第三和第四透镜单元的焦距。

Most people will not be affected by this omission, though a 1.6:1 lens does open up the possibility of using the lens's zoom to display 2.35:1 movies in large format without the use of an anamorphic lens.

大多数人将不会受到这种忽略，虽然是1.6：1镜头并开放使用该镜头的放大显示在大尺寸而不需使用2.35：1变形镜头的电影的可能性。

When you pull out the lens, turn clockwise to lock it, when you want to push it back, always remember to turn the advance film knob first and after that press the button and turn the lens anticlockwise to keep it back and also to remember to pull out the lens when you want to rewind the film.

当你把镜头拉出来时，记得要顺时针转，当你要把镜头收回时，千万要记得过片先，然后按回收镜头键，在逆时针转，在收回去。还有，当回片时，千万计的要把镜头拉出来。

"We have the Book. Now we must see if we can bear its revelations."

我们拥有书了，现在我们必须看看是不是能够揭露其中的秘密。

I hope these flowers make you smite .

我希望这些花能让你微笑。