英汉双语例句-生物医药大词典

Each structure has its own refractive index, and when a light ray crosses an area where the index changes, the light scatters, creating a degree of opaqueness.

中文意思：
每个构造都有各自的折射率，当光线穿越折射率不同的区域时，便会散射而造成某种程度的不透明。

以下为相关句子列表(点击查看，可以看对应的解释）：

	Each step must be taken in turn and completed before moving on to the next. No step should be left out.			每个步骤都需彻底达成,才能依序地往下一步.绝不能轻忽和省略任何一个步骤.
	Each step of the double helix is a base made up of two kinds of nucleic acid.			每阶二重螺旋线都是一个碱基，由两种核酸组成。
	Each step strains his joints.			每走一步关节都疼。
	Each stitch covers a diagonal of one cell of the grid.			每条缝线覆盖格子的对角线。
	Each stitch setting is controlled by a step motor .It has 24 stitches of independent selections and each of them ranges from 00-180 steps for knitting pattern.			每个度目接受步进式电子马达控制，设有24种可单独选择的度目，每种度目自00-180段选择织目的疏密。
	Each structure has its own refractive index, and when a light ray crosses an area where the index changes, the light scatters, creating a degree of opaqueness.			每个构造都有各自的折射率，当光线穿越折射率不同的区域时，便会散射而造成某种程度的不透明。
	Each student can speak English.			每个学生都会说英语。
	Each student does his own part in the collective thorough cleaning and takes a rest after the labor committeeman's examining.			集体大扫除时每个人都必须做好自己份内之事；做好之后由劳动委员检查之后方可休息。
	Each student has 15-20 min. altogether for the oral defense, with 5 min. for oral presentation of the thesis by the student, and 10-15 min. for the questions and answers.			每场答辩15-20分钟.学生首先进行答辩称述5分钟左右;答辩小组针对论文提问与学生回答10-15分钟.
	Each student has to hand in a composition once a week.			每个学生必须一星期交一次作文。
	Each student has to pay $100 a month for board and lodging.			每个学生每月需付一百美元的膳宿费。