Applicable to the corner seaming of leather shoes lea ther bags.适用于皮鞋、运动鞋、皮包等类似物品的转角缝纫.Best suitable for stitching tents, seat cushions , horse gears, and gunnysacks, cars seaming and so on.适用于帐篷, 坐垫, 抛光输(布输)马具, 黄麻袋, 汽车车...
20公里后她因胃痛而退出了比赛。She dropped out after 20 kilometres with stomach trouble.她多少已经预料到他会中途就退出这门课程。She'd half expected him to withdraw from the course.圣诞节前后剧组中有4个人退出了。Four of the cast jacked it in about Christmas....
The floatation performance of jamesonite with diethyldithiocarbamate as collector is studied.研究了以乙硫氮为捕收剂时脆硫锑铅矿的浮选性质.A new type of inhibitor ( RC ) was used for separating jamesonite from pyrrhotite.研究了新型抑制剂 RC 在脆硫锑铅矿和磁黄铁...
Aim To investigate the constituents of flavonoids from the stings of Gleditsia sinensis L.目的研究中药材皂角刺中黄酮类化合物化学成分.In this paper, the chemical utilization of Gleditsia sinensis seeds, pods and stings has been discribled.介绍了...