sulfur hexafluoride

Methods CEUS was performed in 505 patients with FLLs. A sulfur hexafluoride-filled microbubble ultrasound contrast agent and a continuous real-time imaging technique of contrast pulse sequencing were used.

方法采用六氟化硫微气泡造影剂和连续实时成像的对比脉冲序列技术，对505例FLL作超声造影检查。

The trace sulfur hexafluoride in high pure nitrogen trifluoride gas was determin by selective ion monitor ( SIM) mode.

用选择离子监测（SIM）方式测定了高纯三氟化氮（NF3）气体中痕量六氟化硫（SF6）。

For increasing the interrupting capability at no load current, permanent magnetic field is drawn into the arc-rotated interrupter of sulfur hexafluoride ( SF 6) circuit breaker.

为了增强开断空载电流的能力，在SF6断路器的旋弧式灭弧室中加入永久磁场。

With sulfur hexafluoride gas to double as insulation interrupter and circuit breaker.

以六氟化硫气体进行灭弧并兼作绝缘用的断路器。