查询词典 xylem rays

Two kinds of convex lens which make parallel light rays converge to the focal point are given.

本文给出两种能使平行光严格聚焦于一点的凸透镜。

A convex lens is used to concentrate rays of light.

凸透镜用于聚集光线。不适合

Long-sightedness can be corrected with a convex lens that ensures light rays fall on the retina and focus accurately.

长期近视可以纠正一个凸透镜，确保光线落在视网膜和重点，准确。

The parallel light rays of the prnicipal axis that approach a convex lens can converge to the focal point.

只有在近轴光线条件下，平行光通过凸透镜才可近似聚焦于一点。

I should like to see how your theory, even if we waive the difficulties, explains those phenomena which are so clear and understandable in the light of the corpuscular theory. Take, for example, the fact that light rays travel in vacuo or in air along straight lines.

即使我们撇开那些困难，我还想知道你的理论如何去解释那些被微粒说解释得很明白而容易理解的现象，例如光线沿直线在"真空"或空气中通过的情况。

In every evenings,I look up the sky,think which star is the best light,thinking,and thinking,at 100e,I have a new ane beautiful world,coruscate rays'stars are another and another,I like children,I like excellent people,at here,I can see and hear them,this is a sudden get.

每一个孤独的夜里，我仰望星空，想是哪颗星星最亮，想来想去，想去想来，在100e这个窗口里，我看到了前所未有的，美丽的世界，闪烁着光芒的星星一颗一颗，我喜欢孩子，我喜欢优秀的人，在这里，我都看到了，是一个世外桃园吧，这可是个意外收获。

From far out in space come other kinds of radiation know as cosmic rays.

从很远的太空来的其他射线称为宇宙射线。

Anything from cosmic rays to radiation to diet may activate a dormant oncogene, but how remains unknown.

任何东西，从宇宙射线到辐射，以至日常饮食，都可能激活潜伏的致癌基因，但如何激活的，仍然不得而知。

Anything from cosmic rays to radiation to diet may activate a dormant oncogene,but how remains unknown.

从宇宙射线到辐射到食物，任何东西都有可能激活沉睡中的致癌基因，但激活的方式尚不得而知。

Same cosmic rays as seen in the full resolution data. Many more cosmic ray events are visible.

在完整分辨率的图片上，可以看到更多的宇宙射线斑点。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。