According to different concrete cracks tow methods commonly adopted in engineering are introduced to prevent concrete cracks. They are surface repair method and internal repair method.
针对不同情况下的混凝土裂缝，介绍了工程中常采用的两种治理方法，即表面修补法和内部修补法。
2
The basic method of regulating rainfall sensor with the tow-point is outlined.
本文概述了用两点法校准雨量传感器的基本方法。
3
Method 117 female cases with visible symptoms of NGU infected by UU were divided to tow groups randomly, of which, one treated by microwave locally and another treated by susceptive medicine.