quadrant electrometer：象限靜電計(jì)

quad array,方陣 | quadrant electrometer,象限靜電計(jì) | quadrupole field,四極場

fanlight quadrant：扇形窗上的扇形檔

fanlight opening gear 扇形窗開閉傳動(dòng)裝置 | fanlight quadrant 扇形窗上的扇形檔 | fanlike structure 扇形構(gòu)造

first quadrant：第一象限

first order theory 一階理論 | first quadrant 第一象限 | first quartile 第一四分位數(shù)

first quadrant projection：第一角象限投影

"一次矩","first moment" | "第一角象限投影","first quadrant projection" | "初絞螺絲攻,頭攻","first roughing tap"

mural quadrant：墻象限儀

這里不妨對墻象限儀(mural quadrant)稍微多說幾句,因?yàn)檫@是一種阿拉伯風(fēng)格非常濃郁的天學(xué)觀測儀器. 這儀器的主體是一堵位于子午面中的墻(即垂直于當(dāng)?shù)氐仄?而且豎立在正南北方向的墻);在墻的南端上方安置一個(gè)軸,這軸同時(shí)還作照準(zhǔn)用的準(zhǔn)星;

quadrant of a circle：四分圓

quadrant 象限 | quadrant of a circle 四分圓 | quadrantal 象限的

quadrant angle：象限角

quadrangle 四角形四邊形 | quadrant angle 象限角 | quadrant antenna 正方形天線

The sportscaster appeared in the upper-left quadrant of the TV screen during the game：象限

put (someone) through: 為...接通電話 I'll put you through to Mr. Lane right... | quadrant: n. 象限 The sportscaster appeared in the upper-left quadrant of the TV screen during the game. | quote: n. 報(bào)價(jià)

control quadrant plate：操縱扇形板

力控制偏心輪 draft-control cam | 操縱扇形板 control quadrant plate | 扇形板支座 quadrant plate bracket

quadrant plate bracket：扇形板支座

操縱扇形板 control quadrant plate | 扇形板支座 quadrant plate bracket | 操縱鎖緊軸 control lock lever