glass needle lubricator 玻璃针注油器
suction glass needle 玻璃吸附针尖
fabrication technique for glass needle 玻璃针尖加工工艺
Glass fibre needle felt filter 玻璃纤维针刺毡过滤材料
Glass fiber needle mat 玻璃纤维扎针棉
glass s needle lubricator 玻璃针注油器
needle of glass 玻璃针
To experimentally investigate it, needle valves and transparent glass tubes with flow channels similar to that of safety valves were used instead of the safety valve.
采用针阀代替安全阀，实验研究了安全阀进口干度、阀开度对安全阀及下游管路中流动堵塞的影响。
The present paper has described the die made by chromium car - bide for forming mass spectrometer needle and double curved surface glass tube in surface analyzing instrument.
介绍了采用碳化铬硬质合金制作质谱计和表面分析仪器中的双曲面玻璃管的成形模具。
Industrial cloth: 208,729,747, fiberglass cloth, glass fiber needle, barbed felting, film and liquid filtration cloth bag and so on.
工业布：208、729、747、玻璃纤维布、玻璃纤维针、刺毡、覆膜滤袋及液体过滤布等。
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