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As one of the most common malignant tumors in the world, colorectal cancer (CRC) is accompanied by a variety of symptoms in the process of disease development and treatment, which seriously affect the functional state and quality of life of patients. In China, comprehensive intervention measures of traditional Chinese medicine (TCM) play an indispensable role in the treatment and rehabilitation of CRC. In order to further standardize and improve the treatment and management of CRC by medical staff, the Chinese Association of Integrative Medicine issued the “Expert Consensus for Diagnosis and Treatment of Colorectal Cancer with Integrated Traditional Chinese and Western Medicine” in August 2021. This paper interprets this consensus in detail from the perspective of nursing, focusing on the common understanding of the pathogenesis of CRC, TCM diagnosis and syndrome differentiation, integrated traditional Chinese and Western medicine nursing, TCM characteristic therapies, etc., with a view to deepening the understanding and practical application of the consensus among clinical doctors and nurses and improving the level of diagnosis, treatment, and nursing of CRC.

Tooth flank twist is a common phenomenon in the helical crowning modification of helical cylindrical gear, which reduces the performance of the gear. At present, the measurement of tooth flank twist is still in the stage of replacing surface with line. The development of 3-D measurement technology makes the acquisition of gear information more comprehensive and complete. By processing the 3-D point cloud data, the twist deviation on the tooth flank can be found, which is particularly important for improving the quality of the tooth flank. In this paper, a characterization method of tooth flank twist based on orthogonal polynomials was proposed, which can effectively separate the twist deviations existing on the tooth flank. The correctness of the method was verified by measurement experiments. Taking worm grinding wheel grinding to process helical crowning modification as an example, the model of various parameters of the gear and the amount of twist was established and the twist deviation in processing was predicted. This provides a new method for eliminating the twist deviation of the tooth flank.