从右前罩板外侧孔切断同轴电线保护环。
Disengage the coaxial cable grommet from the hole in the right cowl side outer panel .
利用空气煤油（苯甲酸） 水体系，测定了未装填料和分别装填板波填料、丝网填料、压延孔环填料的鼓泡萃取塔水力学性能和传质性能。
Experimental measurements of hydrodynamics and mass transfer have been carried out with air kerosene (benzoic acid) water system and three typical kinds of packing.
一个孔板(支撑骨架)被置于上下密封环的中间来加固折叠材料以防变形(密封力)。
A perforated plate (supporting shell) is placed between upper and lower sealing rim to reinforce the pleated material against deformations (sealing force).
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