单选题
1分
Movement of the diaphragm or bellows is ____ by a linkage to a needle or pointer display to indicate...
Movement of the diaphragm or bellows is ____ by a linkage to a needle or pointer display to indicate the differential pressure between two sides of the diaphragm or bellows
参考答案: C
参考解析: 膜片或波纹管的运动由一个连接到一个指针或指针显示,表示膜片或波纹管的两侧的压差