a concave lens/mirror
凹透鏡；凹鏡
牛津詞典
...a concave stomach.
凹陷的腹部
...the concave bottom of an empty hair spray container.
空噴發(fā)膠罐凹進去的罐底
The mirror is concave.
鏡子呈凹面.
期刊摘選
A concave shape micromachined variable capacitor was presented which has high Q and wide tuning ranges.
提出了一種高Q值、寬調(diào)節(jié)范圍的凹型結(jié)構(gòu)微機械可變電容.
期刊摘選
Concave polygons have to be divided into several convex polygons, and are convex polygon clipping algorithms.
解決了大多數(shù)算法將凹多邊形裁剪分解為凸多邊形處理存在計算時間長、難度大等問題.
期刊摘選
Having greater curvature on the concave side than on the convex side . Used of a lens.
凹凸的凹面曲率大于凸面曲率的.
期刊摘選
The graph of a concave function is always below its tangent.
一個凹函數(shù)的圖象總在它的切線的下方.
辭典例句
The hood and front mask theme is characterised by offset surfaces and concave and convex volumes.
引擎蓋和前臉主題以偏移曲面和凹凸雕琢效果為特征.
期刊摘選
Alternative characterization of concave and convex functions which is sometimes useful.
對于凹函數(shù)和凸函數(shù)還有一個替補的表征,有時它是有用的.
辭典例句
Therefore, although the font is small, but very deep concave, but very clear.
所以字體雖然小, 但是凹得很深, 而且非常清晰.
期刊摘選
Stretch manner has different influences on concave boundary and convex boundary of model.
伸展方式對于凹形邊界和凸形邊界具有不同的影響.
期刊摘選
The concave grating on the film of PPTA is prepared by the double beam interference illumination.
利用PPTA薄膜在紫外光照下可硬化的特點,在薄膜上制備光柵進行研究并通過雙光束干涉曝光法,制備了凹面光柵.
期刊摘選
Dial: Black or white Museum dial. Silvertone dauphine hands and concave dot at 12 o'clock.
表盤: 黑色或白色博物館珍藏型表盤,銀色皇太子指針,12時位置為經(jīng)典的“太陽”凹點設(shè)計.
期刊摘選
The first part is the cavity, which gives a concave part its external shape.
第一部分是腔,從外形上看, 它提供了一個凹的形狀.
期刊摘選
Composite roller surface is longitudinal streak, concave band noise.
復(fù)合輥表面有縱向條痕 、 凹紋.
期刊摘選
The palm of one's hand is slightly concave.
人的手掌是微凹的.
《現(xiàn)代漢英綜合大詞典》
Objectives To explore the feasibility and rationality of body temperature detecting in upper concave of clavicle.
目的探討鎖骨上窩測溫的科學(xué)性與可行性.
期刊摘選
Aim To explore the relation the focal shape and the designed parameters of concave focusing transducer.
目的揭示凹球殼形聚焦換能器焦域形態(tài)及其設(shè)計參數(shù)之間的關(guān)系.
期刊摘選
The room had white concave walls, and Kurt's eyes had a hard time focusing.
房間的白色墻壁是向里凹進去的, 庫爾特的眼睛一時間難以聚焦.
期刊摘選
The designs of conical annular structure and concave spherical structure are first pioneered. 2.
其中錐環(huán)形和凹球形結(jié)構(gòu)設(shè)計屬于首次研究.
期刊摘選
The next wave would lift those objects up to its steep concave slope.
跟著涌來的浪頭又把這些物品舉到了那高高的浪峰上.
辭典例句
