This export project includes two sets of 40 ton dock container cranes and 3 sets of wheel-type gantry cranes. 這個(gè)出口項目包括兩臺四十噸岸邊集裝箱起重機和三臺輪胎式龍門(mén)起重機。
Integral instability of a gantry crane causes structure to lose load supporting capability. 龍門(mén)起重機的整體失穩導致結構喪失承載能力。