It's a trim-fitting insulating jacket that can be worn as a layer under a hard shell to provide warmth, or by itself as a wind and water-resistant jacket.
这是一件剪裁修身的夹克，可以穿在硬壳里面作为保温层，当然，本身也可以作为一件防风防水的夹克。
2
The mechanical analysis and design were carried out on filter chamber shell, heating jacket and machine frame of melt filter.
对熔体过滤器的滤室壳体、加热夹套及机架进行机械分析和设计。
3
On the horizontal vessel with the partial jacket, the calculating method of intensity and stability of the jacket and shell still has not introduced in the correlative reference.