Can be used in power transmission mesh, ratio of occasions, but generally higher accuracy of precision and installationaccuracy.
啮合传动能够用于大功率的场合，传动比准确，但一般要求较高的制造精度和安装精度。
2
Using traditional plumb lines in elevator guide rails' installation is difficult to ensure the installationaccuracy, wasting time and Labour.
电梯导轨安装精度以往多采用吊线锤法，一般很难保证导轨的安装精度，且费时、费力。
3
The invention has the beneficial effects of low construction risk, high efficiency, short construction period, high installationaccuracy and low installation cost.