Farming, quarrying and other local industries have declined.农业、采矿业以及其他地方工业都已陷入衰退。Township enterprises in trade , in commerce, mining, coking, quarrying, food service industry.乡镇企业有商贸 、 采煤 、 炼焦 、 采石 、 饮食服务业.In addition, t...
In addition, the Pneumoconiosis during dust more quarrying, abrasive industries.此外, 尘肺病多发生在粉尘较多的采石 、 打磨行业.Farming, quarrying and other local industries have declined.农业、采矿业以及其他地方工业都已陷入衰退。Township enterprises in trade , i...
当反应温度高于聚合上限温度时,聚合物会解聚成小分子单体.A chain - growth polymer raised above the ceiling temperature will degrade, or depolymerize.以肝素钠为原料,经成盐 、 酯化 、 解聚和纯化得到依诺肝素钠.Enoxaparin sodium was prepared from heparin sodium via salinization,...
The book is aimed principally at beginners.这本书主要是为初学者编写的。The sell-off is aimed at repositioning the company as a publisher principally of business information.出售公司部分业务的目的是将公司重新定位为以商业信息类出版物为主的出版商。Embryonic development see...