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(3) Power on the control coil to detect the contacts. Apply rated voltage to the control coil of the time relay, and then detect whether the contact state changes according to the type of the time relay. For example, for the energized time delay type time relay, after the energized time delay, whether the delayed open contact is closed (the resistance is close to 0) and whether the delayed closed contact is opened (the resistance is infinite).In order to establish a reliable cross-validation method, you must have a good understanding of the data and the challenges you face. I will also check and ensure that the validation set has a similar distribution to the training set and the test set, and try my best to ensure that the final model improves in both local validation and ranking.Taking into account the error, and based on the small power storage ratio, we can correct this value to 15% and 20% multiplication damage.影片讲述了大头儿子一家在孩子成长的过程中遭遇困惑、不惧艰难、共同面对的故事：围裙妈妈望子成龙，让大头儿子参加神秘人物的“天才改造实验”，大头儿子短时间内发生了神奇的改变，但此时，神秘人物也露出了另一副面目……、Barbie's younger sister Chelsea is trying to celebrate her 7th birthday but her birthday is skipped due to the international date line.