jbj_有道手机词典

1.The transverse joints of Laxiwa arch dam use JBJ-60 one-way grouting device to conduct the repeated grouting in the original plastic pipe.
拉西瓦混凝土双曲拱坝的横缝采用JBJ-60型单向注浆器在原有塑料拔管系统的基础上进行重复灌浆。
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