The result showed that the doublehead han'ester for com picker and silage has an extensive adaptability to all com.
结果表明：玉米摘穗—秸秆青贮型复式割台对于各种玉米具有广泛的适应性。
2
Objective: To observe and measure the Sacro-iliac joint and correlative parts for clinical reference in Hemipelvic dislocation internal fixation by doublehead hollowed screw.
目的：通过骶髂关节及相关的解剖观测，为半盆脱位骶髂关节穿钉固定术提供临床应用依据。
3
The paper described in detail the way and workmanship of centering of doublehead universal coupling during shafting alignment onboard high performance crafts that have flexible hulls.