题目Atlantic puffins(角嘴海雀)are specially used to living on the open sea. Their feathers allow them to stay warm as they float at the ocean's surface or swim underwater. Diving as deep as 60m, they swim by flapping their wings as if flying through the water. The...
An automatic z-probe is moved with the extruder, so that the firmware does not need to wait for user actions. A semi-automatic z-probe could be a switch used by cnc machines to measure tool height. Because it is not connected with the extruder, you need to position it underneath 分享...
Before the 2011 season, we went to the World War One battlefield at Ypres, in Belgium, and even now, the players still talk about it."That pre-season, we also spent some time at the Royal Marines' training camp in Plymouth and talked to soldiers who'd spent time in Afghanistan. T...