英汉双语例句-生物医药大词典

By changing the contents of blowing agent and the inner size and changing the density distribution of structural polyurethane foam, the influences of the inner structure on the properties of gradient density polyurethane foam were investigated.

中文意思：
摘要通过改变发泡剂用量和采用不同密度泡沫组合，来改变聚氨酯结构泡沫整体的密度分布，研究了梯度密度聚氨酯泡沫塑料的性能。

以下为相关句子列表(点击查看，可以看对应的解释）：

	By century's end, the only polar bears left might live in the Canadian Arctic islands and along the west coast of Greenland.			到本世纪末，仅存的北极熊可能将生活在加拿大北极岛屿及格林兰岛的西海岸地区。
	By chance more than by arrangement it went between the knees of those wonderful legs, and he fell heavily to the ground with a loud cry.			没想到那根拐杖正好卡在那双健美的长腿的两个膝盖之间，他大叫一声重重地摔倒在地上。
	By chance, I have had something useful in IELTS reading. Thus, I especially show part of them, sharing with some people who are struggling for English itself and their own.			在整个阅读过程中，最重要的部分就是快速阅读。但是很多雅思考生非常反感阅读大段文章，更不用说在短时间内进行阅读。因此，我想借用“大富翁”这款游戏中的一些术语。
	By chance, Wan meets rich Lau and the two immediately fall for each other.			有次在机缘巧合之下认识了富家仔刘德华,二人一见锺情。
	By chance; casually.			偶然地；任意地
	By changing the contents of blowing agent and the inner size and changing the density distribution of structural polyurethane foam, the influences of the inner structure on the properties of gradient density polyurethane foam were investigated.			摘要通过改变发泡剂用量和采用不同密度泡沫组合，来改变聚氨酯结构泡沫整体的密度分布，研究了梯度密度聚氨酯泡沫塑料的性能。
	By changing the fixed knife material, adding spacer, repairing the moving knife front and back angle, transforming the casting bond into double one, the effects were obvious.			通过更换定刀材质，加放垫片，动刀修复前后角，改为双铸带头等后，效果显著。
	By changing the orientation of the molecules that make up the liquid crystals, the modulators reshape the wavefront of the incoming light beam to display the image encoded in a computer-designed hologram.			这种调节器藉著改变液晶分子的方向，重塑入射光束的波前，以显现出电脑设计的全像图中所储存的影像。
	By changing the tube into D shape (semicircle), the pallet can fully contact with the tubes (re. picture 2), the cooling speed can be shortened by the contact surface increased.			如果把管子的形状改成D形（半圆形），托盘在管子上的接触为平面接触（如图2所示），接触面积比圆管大大增加，热量以最快的速度从托盘传至排管并由管内的冷剂蒸汽带走。
	By changing the tuned ratio and the damping ratio, the effectiveness of multifunctional vibration-absorption megaframe structures under earthquake and wind excitation is discussed in both time and frequency domains.			改变调谐比和阻尼比等关键参数，通过时域和频域分析，研究了巨型框架多功能减振结构体系在地震和风荷载作用下的减振效果。
	By changing these parameters and the Z-directional stiffness of the outer-ring, the stiffness and the damping characteristic of the damper can be varied.			在转子系统支承中引入摩擦阻尼器能够降低支承刚度，从而降低系统的临界转速，避开工作转速。