|
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。 |
|
By chaotic, we mean that the particle's location, while definitely in the attractor, might as well be randomly placed there.
|
|
|
靠混沌，我们指的粒子位置，虽然在吸引器里明确了，可能也是随机放在那。 |
|
By choosing reasonable suction location and combination, the large scale profile separation can be well controlled, but the effect on decreasing the secondary flow loss is limited.
|
|
|
计算结果表明，通过选用合理的抽吸位置及抽吸方式的组合，附面层抽吸能较好地控制叶栅内的大尺度的叶片表面分离流动，但对二次流损失的改善效果并不明显。 |
|
By choosing the best imitator for a mate, women help propagate the genes needed to copy religious rituals, colorful clothes, singing, dancing, painting and so on.
|
|
|
女人挑选最佳模仿者做性伴侣，就是协助散播使人善于复制宗教仪式、彩色服饰、舞蹈、绘画等技能的基因。 |
|
By circulation that must be done according to our intent.
|
|
|
藉著循环一定要被依照我们的意图做。 |
|
By citing more examples, he drove his points home.
|
|
|
通过更多的举例，他阐明了自己的观点。 |
