... 可调整大小之聚合 adjustable size aggregate 可调大小规格 adjustable size specification 可调式托盘 adjustable tray ...
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adjustable impression tray 活动牙托
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Technical reformation was made for rotary sprayer of gas washing tower using a kind of simple, practicable and adjustable sprayer tray.
采用一种简单、实用、可调的喷头盘对洗气塔喷旋式喷头进行了技术改造。
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