If the corn cobs have thick layers of husks attached, peel off the first few layers, leaving only a few left to protect the corn and prevent it from burning. Fill a large pot with cold water and dunk the cobs of corn inside. Make sure that the corn is completely covered with water. If the cobs of corn float, turn them occasionally to make sure that all sides get exposed to water. The water provides extra moisture, which prevents the corn from drying out as it gets grilled. You should let the corn soak for a minimum of 15 minutes, but it can sit in the water up to 3 hours. The grill should reach medium heat. If using a grill with a thermometer, allow the grill to reach roughly 350 degrees Fahrenheit (177 degrees Celsius). After it has soaked, pull the corn out of the water and shake off excess water. Pull the husks back to expose the top half of the corn, but do not remove the husks completely. After exposing the corn, pull away the silky threads from the side by grasping them and yanking them up. You can use melted butter or olive oil. Roughly 1 Tbsp (15 ml) per cob should be sufficient. Position it so that it sits on direct heat. Allow it to sit on the grill for 30 to 60 seconds on each side in order to brown but not burn. Rotate as necessary to prevent the corn from burning. This can either be the side of your grill or along a top shelf. Close the cover and allow the corn to cook for 15 minutes. The kernels will also pull away slightly from the tip of the cob. If the corn begins to bend in your hands or if the kernels feel soft and mushy, it has cooked too long. Use tongs and oven mitts to prevent yourself from getting burned. Grab the uncovered portion of the corn cob with one hand, using an oven mitt or clean dish towel to prevent yourself from getting burned. Peel the remaining husks off and pick off the remaining silk threads. Rinse the corn under warm, running water to remove any ash that has fallen onto the cob.

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Write a summary of the previous text in Chinese:
剥掉大部分的玉米皮，但不是全部的玉米皮。 浸泡玉米。 在浸泡玉米的同时，预热烤架。 剥掉部分的玉米皮。 弄掉玉米须。 给玉米粒涂上黄油。 把玉米放在预热了的烤架上。 把玉米移至间接加热处。 玉米皮颜色变深的时候，把玉米移走。 把玉米棒弄干净。