hard twist ply silk yam 真丝强捻股线
hard twist silk 紧捻生丝
complete equipment for silk and silk piece goods & spun silk piece goods 生丝-丝织物及纺织物生产成套设备
Hard Roof and Hard Coal 两硬条件
Hard Roof and Hard Floor 坚硬顶底板
hard-soft-hard sandwich media 三明治介质
blanket with silk or rayon silk bindings 绸缎或人造丝捆边毡
silk manuscripts,(ancient)book copied on silk 帛书
(semi) hard process (半)硬过程
20 m VERY THICK AND MEDIUM HARD SEAM 20m特厚中硬煤层
3 channels hard cholecystoscope 硬质三通道胆囊镜; 加州技术测验
A Good Man Is Hard to Find 商务信息系统; 好人难寻
a hard case 不可救药的人
a hard nut to crack 脑电; 棘手的问题
a hard row to hoe 乏味的工作
a hard sphere unit 硬球单元体
ABCD optical system with internal hard-edge aperture 含硬边光阑ABCD光学系统
Abnormal hard tissue formation in pulp 尿道旁结缔组织良性肿瘤
abrasion-resistent plate by hard bead welding 硬堆焊耐磨板