The flexible diaphragm is connected to a plat cantilever - calibrated spring.柔韧的膜片一扁平的悬臂校正弹簧相连.Reflection of a beam of light on the diaphragm falls on a phototransistor.经膜片反射的光束照射到光敏管上.The diaphragm draws air into the lu...
再怎样跟他讲道理都不能让他放弃自己认准的事。No amount of reasoning could shake him out of his conviction.他一度被称为过分讲究精准的试飞员。He was once described as a fussily accurate test pilot.一记精准的任意球a scorcher of a free kick...