surface frost

It was also testified that the weigh of the water coagulated on the cold surface was not changed when the coat was brushed on the surface so it was through absorbing the water in the air that the coat controls frost growth but not through reducing the coagulated water;

通过实验还证明了这种涂层并没有减少冷壁面上水量的凝结，而是靠其吸收了凝结在壁面上的水分起到了抑霜的作用；

Similar to the results obtained for the copper surface, for aluminum surface at temperature above-38 ℃, super-cooled water droplets were observed before frost crystal formed on the surface;

与先前的铜表面实验结果类似，在冷面温度高于-38℃时，结霜前铝面上首先出现水珠；

Tangential frost-heave force is perpendicular to frozen frontal surface and is parallel to side surface of foundation which is a pulling force make foundation move as the frost heave deformation of soil.

其中切向冻胀力垂直于冻结锋面，平行作用于基础垂向侧表面，且通过影响基础与冻土间的冻结强度，使基础随着土体的冻胀变形而产生向上位移的拔起力。

By this system, environment temperature and humidity, cold surface temperature and contact angle can be adjusted for observing frost growth at different circumstance.

通过这套系统，可以调整环境温度湿度，冷表面的温度以及表面接触角，来研究不同条件下霜层的生长状况。

Boldwood was listlessly noting how the frost had hardened the surface of the snow.

博尔德伍德心不在焉地看着冰凌怎样使雪地的表面变硬.

The process of frost formation on horizontal aluminum surface in natural convection was experimentally studied.

实验研究了自然对流时水平铝表面上的结霜现象.

The Study of Frost Growth Regularity on Vertical Cold Surface in Natural Convection

自然对流条件下竖直冷平板霜生长规律的研究