The physical and chemical properties of hydrogen fluoride differ from the other halogen hydride. Acidity of HF is related to condition or state.
氟化氢与其它卤化氢相比，有着独特的物理化学性质，它的酸性强弱与其所处的状态有关。
Compared to HF heating and other methods, it is with high welding speed, high production, low cost.
该工艺方法较之以往的高频加热法和管材导电加热等工艺方法，具有焊速快、生产率高、成本低等优点。
Unlike many other HF/50 MHz receivers there is no need to install an additional unit for FM mode reception on the 29 and 50 MHz bands.
不像许多其他hf/50MHz的接收器有没有需要安装额外的股调频模式招待会上29和50兆赫频带。
Other risk factors for incident HF include age, African American race, hypertension, current smoking, diabetes, body mass index, and alcohol abuse.
其它心衰的危险成分包括：年龄、美国非洲裔人、高血压、吸烟、糖尿病、体重指数过高、酗酒。
Wanshicheng has exquisite craft, advanced plating assembly line, stamping machine, HF welding machine and other relevant equipment.
万事成具备精雕细琢的工艺，先进的电镀流水线，压机冲床，高频焊机等整套高水准工艺设备。
Recent years, the harm of acid rain is growing, mainly due to the increase of SO2, HF and other toxic gases of the air.
近年来，大气酸雨问题日益严重，造成酸雨的主要原因是大气中二氧化硫、氟化氢等有毒气体含量的增加。
Spary wet dedusting is an effective measure to purify tail-gases, and other toxic gases (so 2 and HF) can also be removed, which was proved by experiment.
实践证明喷雾湿法除尘是净化尾气的有效措施，可以达到高效除尘的目的，并能同时除去其他有害气体。
Spary wet dedusting is an effective measure to purify tail-gases, and other toxic gases (so 2 and HF) can also be removed, which was proved by experiment.
实践证明喷雾湿法除尘是净化尾气的有效措施，可以达到高效除尘的目的，并能同时除去其他有害气体。
应用推荐