空气

Air is not visible, but it is matter.

空气是看不见的，但空气是物质。

The air pressure wave on the surface of train bod...

在遂渝线200 km/h提速综合试验中的应用结果表明，该测试系统能够满足客运专线隧道空气动力学实车测试的需要，检测方法灵活、快速，测试结果准确、可靠；时速200 km动车组经过松林堡隧道时，产生的空气压力波具有的最高频率低于100 Hz。

Flows quickly in to fill the gap the hot air leaves behind. That air rushing in to fillthe gap is wind.

当这些较轻的空气分子突然上升时，冷空气便很快的流入热空气留下的空隙中。

When the windpipe is charged with air, the air passes on to the hollow parts of the lung.

当气管充满了空气时，空气继续传递到肺中空的部分。

Thespecimens are free from the shortcomings of easily moldy and wormy which the traditional makeddried plant specimens have. so the specimens are water- proof.

以往所制作的植物腊叶标本，裸露在台纸表面，遇到空气潮湿季节，易被空气中的水汽湿润而霉变，且易遭虫蛀，难以保持原色。

Actional percentage point of the volume.

氖是空气中的稀有气体，只占空气体积的千分之几。

An original exhausted-air reclaiming technical method has been presented, that is to say, the discharging chamber's pressure-air is reclaimed into the air tank through the additory of the exhausted-air reclaiming control devices which can be considered as the mid-pressure air supply for reutilization in order to realize the aim to save energy.

论文提出了一种创新性的气缸排气能量回收技术途径：通过附加排气回收控制装置将气缸排气腔的有压空气回收到储气罐中，并作为中压空气源再利用，以实现节能。

Based on preliminary evaluations of the use of common indoor plants for indoor air purification and revitalization , ALCA joined NASA to fund a study using about a dozen popular varieties of ornamental plants to determine their effectiveness in removing several key pollutants associated with indoor air pollution .

基于对使用普通室内植物净化室内空气和再生新鲜空气的初步评估，美国园林产业联合会与美国国家航空航天局共同赞助了一项研究。

The results show that the samples exposed to the air previously for 24 h can be passivated automatically in acetic acid solution with Cl- with the corrosion potential remaining 100mV.No such phenomenon was observed for samples which were cathodically polarized with the corrosion potential stabilizing at a value of -242±3mv. The passive film formed by anodically polarizing is more proof than formed in the air.

研究还发现：在空气中放置24小时后的试样在Cl-醋酸溶液中能自钝化，自腐蚀电位为100mv；经阴极极化后的试样在Cl-醋酸溶液中不能自钝化，其自腐蚀电位为-242±3mv；经阳极极化形成的钝化膜比在空气中自然形成的钝化膜更致密。

Objective To establish an animal model of asphyxial neonatal rat and compare the effects of resuscitation with 100% oxygen and resuscitation with room air on the ultrastructure and the apoptosis on the kidney of asphyxial neonatal rats,in order to provide a scientific basis for clinical choice to resuscitation.

目的 建立窒息新生大鼠动物模型，比较纯氧与空气复苏对窒息新生大鼠肾组织超微结构和细胞凋亡的影响，为临床选择使用纯氧或空气复苏提供动物实验依据。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。