| 摘要 |
A window is provided in the floor of the crane cab and a reflecting mirror is located in front of the operator which is positioned such that the operator can look through the window without leaving his seat. With the orientation of the mirror and window, the operator can view the area below and behind his seat without having to move from his seat. The operator has a clear view of the area in which the load is to be moved and can determine the best and safest time to move the load.
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