U-shaped channel machinery is indeed for measurement work and meticulous calculations?

(1) It is indeed a measurement task. Since the flow capacity of the U-shaped channel is closely related to the slope, with the same cross-sectional area of flow, a larger slope results in faster flow velocity, and thus a greater volume of water passes through. This better meets the requirements of irrigation, making accurate measurement results crucial. During the measurement process, it is essential to be particularly careful and thorough, ensuring every number is read correctly and double-checked before moving on to the next point, especially at turning points, which are of utmost importance. Additionally, the selection of benchmark points is equally significant. Choosing a benchmark point determines the control points of the entire project, so it should be placed on a solid, flat, fixed object. If there are no suitable objects nearby, we should construct them ourselves, setting multiple benchmark points according to the principles of being solid, flat, fixed, and easily identifiable.

(2) Careful calculations are crucial. A well-prepared and accurate budget primarily hinges on two aspects: the volume of work and the unit price of the work. Since the dimensions of U-shaped channels are typically fixed, the unit volume of work for channels of the same size is consistent, making the budget for U-shaped channels essentially controlled by the unit price. As long as we diligently analyze and consider various favorable and unfavorable factors in accordance with relevant regulations when determining the unit price of the work, we can establish an accurate unit price.