differential pistorn
...f calibrating thermocouple,热电偶微差检定法 differential method of measurement,微差测量法 differential pistorn,差动活塞 differential preamplifier,差动前置放大器 differential pressure,差压 ..
stepped piston
... stepped grate 阶梯炉篦 stepped piston 差动活塞 stepped shaft 阶梯式轴 ...
differential motion piston
... differential micrometer dial 差动测微分度盘 differential motion piston 差动活塞 differential motor 差动式马达 ...
differential area piston
... DIFFERENTIAL AREA 波形差面积比较 differential area piston 差动活塞 differential of area 面积元素 ...