When the problem we direct contact with Mr. Feng for assistance and he guides us by the way. -Step 1: Pour the entire chemical in the beaker (beaker are weight loss data) into a hollow beak. -Step 2: check the camera we find the reverse slope time number 1 beaker to drain off monomers stick on beaker down Tank with time is the 4s After checking the camera with time for the reverse slope beaker's la 4s 1 to flow off of chemicals down the Tank. With time, we apply to the beaker (beaker were the problem) means to determine the volume still stick on the beaker 1, we also reverse slope with beaker 2 with time is the 4s
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