If the request gateleg width is big, the working speed is high, or lifts heavy, the long big-ticket item frequently, then chooses the double Liang portal type hoist crane suitably.
如果要求门腿宽度大，工作速度较高，或经常吊运重件、长大件，则宜选双梁门式起重机。
2
The gate was locked, and she tried to take out the chicken's leg;