查询词典 reflected rays

Why is it so important to protect against UVA rays?

为什么如此重要，以防止紫外线照射？

More importantly, UVA damage is cumulative and is irreversible, therefore, also known as aging UVA rays.

更重要的是，UVA的损伤是可以累积的，而且是不可逆的，所以UVA又被称为老化射线。

Provides protection from UVA rays that may contribute to skin damage and premature aging of the skin.

从紫外线会提供保护，可能会导致皮肤损伤和皮肤过早老化。

However, you may reduce your chance of getting a cataract by wearing sunglasses that keep out UVA and UVB rays.

不过，您可能会减少您的机会获得一白内障身穿墨镜保持了紫外线A和紫外线B射线。

In 1966 Kenneth Greisen, Vadim Kuzmin and Georgiy Zatsepin showed that high-energy charged particles (cosmic rays are mostly atomic nuclei, and thus positively charged) should be slowed by collisions with the photons of the cosmic microwave background (radiation left over from the Big Bang that permeates all space).

1966年，肯尼思·格雷森、瓦迪姆·库兹民与乔奇·扎采品表示，充有高能量的粒子（大多数太空射线都属于原子核，因此也就具有正电）应该会由于太空微波背景下（渗透到整个宇宙的大碰撞所遗留下的辐射）的光子碰撞而减慢速度。

Parviflora in shrub communities had the xeromorphic traits in the aspects of ① their secondary xylem had shorter vessel elements, higher vessel frequency, less single porous percentage, lower rays, higher relative conductivity and lower vulnerability index, and ② their leaf had lower water potential, lower water content and free water content, higher bound water content, high ratio of bound to free water content, and less specific leaf area.

扁担木叶片、次生木质部的解剖和水分生理特征均表现出一定的可塑性，其可塑性指数高低顺序为次生木质部解剖特征（0、24）〉水分生理特征（0.19）〉叶片解剖特征（0.18）、与侧柏林和混交林相比，灌丛中扁担木个体对干旱生境有一定的适应能力，表现在次生木质部导管分子短，导管频率高，单孔率低，木纤维短，射线矮小，具有较大的相对输导率和较小的脆性指数；叶片水势、组织含水量、自由水含量较低，叶面积、比叶面积较小，而束缚水含量、束缚水自由水比值较高。

It's a h e aven for hammerhead and white tip sharks, as well as manta rays .

这里是槌头白顶鲨和蝠鲼的憩息地。

A tomograph that produces cross-sectional X-rays of metabolic processes in the body.

能在身体内部产生横截的x光代谢的过程的断层x光摄影装置。

The method consists in, initially, producing MR-overview x-rays of the body of the patient and then using them to individualise a predetermined parametric anatomic body model.

所述方法是，先制作所述患者身体的初始磁共振概览图像，然后在使用所述初始磁共振概览图像的基础上将一个预先确定的参数化解剖学人体模型个性化。

If the more intense of these rays travel up through the E-layer they will encounter the F-layer with the distinct possibility of localised ionisation.

如果强烈这些光芒游遍E 层数他们将遇到F 层数以地方化的电离的分明可能性。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。