| 摘要 |
A level apparatus is disclosed that includes a body mounted on an elongate member. The body typically includes a laser that is capable of rotation about horizontal and/or vertical axes. The elongate member can be braced between, for example, a floor and a ceiling and the body is typically capable of longitudinal movement along an axis that is substantially parallel to a longitudinal axis of the elongate member. Movement of the body and other functions of the apparatus can be remote controlled.
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