Wellhead valve under-pressure replacement device and replacement method von LI DA, LI CHENGXIANG, SHEN CHANGQU

Volltext bestellen

Pipe-rod integrated oil scraper von LI DA, LI CHENGXIANG, SHEN CHANGQU

Volltext bestellen

Gyration hydraulic pressure slips von LI DA, LI CHENGXIANG, SHEN CHANGQU

Volltext bestellen

Outer sealing tool of water injection mandrel von WANG YUNHE, HOU XUEJIAO, HUA XIAOYU, NI XIAOHUA, LI DA, DU HONG, SHEN CHANGQU, CHEN JING

Volltext bestellen

Directed seed dispersal by a scatter-hoarding rodent: the effects of soil water content von Yi, Xianfeng, Liu, Guoqiang, Steele, Michael A., Shen, Zhen, Liu, Changqu

Volltext

Continuous mineral aggregate splitting machine with adjustable splitting ratio von JIANG ZHIHONG, LI CHANGQU, HU BO, ZHANG FENGBIAO, SHEN LE, WANG XINGWEI, LIU YAFENG

Volltext bestellen

One-year two-season corn mechanical planting method von YUAN CHUANCHAO, LI LIBO, AN PEIPEI, QI GUOFENG, SUN YONGJUN, XIAO QINGQING, PAN KEFENG, SUN HONGJIAO, SI DONGGE, WANG ZIJUN, XU XIAOWEI, YI XINGXING, SHEN XIANGLEI, BAI HEFENG, LOU YANHONG, LI GANG, WAN BINGMIN, LIU CHANGQU, CHEN HAIJIAN, HU XULAI, GAO MINGJING, HU XINXIN, ZHAO ZHENHUA, ZHOU QINGLEI, XIAO WANHONG, JI HUAICHUN, WANG QILEI, ZHANG PENGFEI, ZHANG ZHANGUANG, ZOU JIAN, ZHAI YANGYANG, MA WENZHOU, ZHU HONGQUAN, ZHU SHENGNAN, ZHANG WEIGANG, GAO ABING, WU DANHUI, ZHOU CHANGYOU

Volltext bestellen