这样您就可以感受到它的气密性。
真空封装是气密封装的应用之一。
火星的大气密度不及地球的大。
The atmosphere of Mars is not so dense as that of the earth.
发现，柯伐镀金盖板遭致电化学腐蚀是导致气密性失效的主要原因。
It is found that couple corrosion of the package lid is responsible for the failure.
为了解决泄漏问题，分析了泄漏的原因，详细地介绍了干气密封的应用实例。
Reasons of leakage were analysis, and application of dry gas seal was introduced particularly.
从理论上对干气密封的机理及影响参数进行了研究。
若温度不变，则空气密度的变化与压力乘正比。
Thee density of air varies directly as pressure, with temperature being constant.
水的密度是空气密度的八百倍。
飞行所需要的动力直接关系与空气密度。
The forces necessary for flight are directly related to air density.
每次戴好呼吸防护口罩后要检查佩戴的气密性。
每次戴好呼吸防护口罩后要检查佩戴的气密性。
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