Microwave absorbing properties of the composites containing the planar equiangular spiral antenna arrays were investigated.研究了含平面等角螺旋天线阵列吸波复合材料的微波吸收特性....
They cost nine pounds new, three pounds secondhand.新的9英镑，旧的3英镑。Others donated secondhand clothes.其他人捐赠了一些旧衣服。I bought a secondhand chair which is as good as new.我买了一把二手货椅子,它如同新的一样....
It takes in anybody regardless of religion, colour, or creed.任何人，不论宗教、肤色或信仰，都可以加入。The club welcomes all new members regardless of age.俱乐部对所有新成员不分年龄一律欢迎。The fields give high and stable yields regardless of climatic circum...