英语词汇directional hole怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	directional hole
释义	directional hole directionalityn. 方向性；定向性 unidirectionaladj. 单向的 bidirectionaladj. 双向的；双向作用的 reflectionaladj. 反射的;反映的 interjectionaladj. 叫声的；感叹词的 instructionaladj. 指导的,教育的
随便看	valve and sample loop system valve and valve gear valve angle valve annulus valve aortae Valve,Aortic valve aperture valve applicator valve applicer valve area valve arm valve arrangement valve arrangement in rod of internal combustion engines valve arrangement in working piston of internal combustion engines valve arrester valve assembly Valve Atresia,Pulmonary Valve Atresias,Pulmonary Valve Atresias,Tricuspid Valve Atresia,Tricuspid valve back pressure valve baffle ring valve bag valve balancing piston valve ball

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