double-pointed nail：合釘

"double point","二重點(diǎn)" | "double pointed nail","合釘" | "double polarisation","二重偏光"

double-pointed nail：兩頭尖釘

"雙線停車","Double parking" | "兩頭尖釘","Double pointed nail" | "雙稜矩鏡","Double prismatic square"

double-pointed nail：接合銷

double point threshold ==> 兩點(diǎn)差別閾 | double pointed nail ==> 接合銷 | double polarity method for calibrating thermocouple ==> 熱電偶雙級檢定法

Double-pointed hoe：兩頭鶴嘴鋤

復(fù)V字形切口 Double V-shaped incision | 兩頭鶴嘴鋤 Double-pointed hoe | 復(fù)心材 Double-summit

double-pointed tack：雙尖釘

double-point toothing ==> 雙點(diǎn)嚙合 | double-pointed tack ==> 雙尖釘 | double-pole connector ==> 雙極插接器

double-pole switch：雙刀開關(guān)

double phase short circuit 雙相短路 | double pole switch 雙刀開關(guān) | double rail track circuit 雙軌道電路

double-pole switch：同上

double-gauss type lenses 雙高斯式物鏡 | double-pole switch 同上 | double-quantum stimulated-emission device 雙量子受激發(fā)射器

switch; double-pole single-throw：雙極單向開關(guān)

"switch; double-pole double-throw","雙極雙向開關(guān)" | "switch; double-pole single-throw","雙極單向開關(guān)" | "switch; emergency","緊急開關(guān)"

double-ported globe valve：雙座球閥

double-pitch roof 雙坡屋頂 | double-ported globe valve 雙座球閥 | double-row bearing 雙列軸承

double-riveted：雙行鉚接的

double-riveted seam 雙行鉚接縫 | double-riveted 雙行鉚接的 | double-rope pulley 雙索滑輪