Basic Knowledge of Compound Fertilizers and Functional Fertilizers – One Question per Day 133

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True or False: 1. During the shutdown of the elevator for cleaning or maintenance, it is essential to cut off the power supply to the motor and place a warning sign in place to prevent accidental operation. ( )2. When encountering large hard lumps, the material feeder can break them with a rod or kick the lumps directly with their foot. ( ) In the compound fertilizers and functional fertilizers section, a daily quiz on basic production knowledge is carried out. We hope that all marine enthusiasts will participate actively. The purpose of this activity is to review the knowledge we have already learned, and to improve and strengthen everyone’s fundamental theoretical knowledge through answering questions, thereby reinforcing what we already know and helping us recall what we have forgotten. The top 50 answerers will definitely receive a reward. Please reply with the answer hidden; otherwise it will be invalid. To view the hidden method, go to: http://bbs.hcbbs.com/thread-492556-1-1.html. Please do not edit after replying! 1、√ 2、×