取样: sample; sampling 短语和例子取样检查 take a sample to check; take a sample for examination and test;井壁取样[石油工业] wall sampling; 混成取样 composite sampling; 取样检查的结果必须附加说明。 results of the sample must be tr
间隔: interval; space; spacing; blanking; blank; region; distance; gap; intermission 短语和例子留间隔 space out; 间隔五米 an interval of five metres; 有一天时间的间隔 with an interval of one day; 没有间隔 without inter
