double poisson distribution：雙卜瓦松分布;雙卜瓦松分配

雙對數(shù)尺度 double logarithmic scale | 雙卜瓦松分布;雙卜瓦松分配 double Poisson distribution | 雙互換設計 double reversal design

double product：二重積

double poisson distribution 二重泊松分布 | double product 二重積 | double ratio 交比

double product：雙倍積

double preventer 雙閘板防噴器 | double product 雙倍積 | double progressivedecreased balance method of depreciation 雙倍余額遞減折舊法

double product：二重和

double probe technique 雙探頭法,熱電偶雙極檢定法 | double product 二重和 | double pulse excitation 雙脈沖激勵

double pulley：雙滑輪

double probe 雙聯(lián)探測器 | double pulley 雙滑輪 | double pulse and square wave generator 雙脈沖與方波發(fā)生器

double wheel pulley：雙輪環(huán)式滑車

double wheel lathe 雙輪式車床 | double wheel pulley 雙輪環(huán)式滑車 | double width jacquard decorative cloth 寬幅提花裝飾布

double chain pulley：雙鏈滑輪

double ceiling 雙層鋪板 | double chain pulley 雙鏈滑輪 | double chain riveting 雙行并列鉚接

double chain pulley：雙鏈輪

double bushing;雙軸套 | double chain pulley;雙鏈輪 | double check valve;二級單向閥

double sheave pulley：雙輪滑車

double service rack 兩側(cè)裝卸橋臺 | double sheave pulley 雙輪滑車 | double shut-in assembly 雙管關井總成

double scored pulley：雙重滑輪

"double scale","雙重刻度尺,雙重比例尺" | "double scored pulley","雙重滑輪" | "double screw jack","雙螺旋千斤頂"