pneumatic

英 [nju?'m?t?k] 美[num?t?k]

CET6暢通詞匯

pneumatic 氣動的，風動的

來自希臘語pneuma,空氣，風，呼吸，來自pnein,吹動，呼吸，來自PIE*pneu,呼吸，擬聲詞。

pneumatic: pneumatic: [17] Pneumatic denotes etymologically ‘of the wind or breath’. It comes via Latin pneumaticus from Greek pneumatikós, a derivative of pneuma ‘wind, breath’ (which is distantly related to English sneeze). Despite its similarity, pneumonia [17] does not come ultimately from the same source. It goes back to Greek pleúmōn ‘lung’, a relative of Latin pulmō (source of English pulmonary), which was altered to pneumōn under the influence of pneuma. From this was derived pneumoníā, acquired by English via Latin pneumonia.
=> pneumonia, pulmonary
pneumatic (adj.): 1650s, from Latin pneumaticus "of the wind, belonging to the air," from Greek pneumatikos "of wind or air" (which is attested mainly as "of spirit, spiritual"), from pneuma (genitive pneumatos) "the wind," also "breath" (see pneuma). Earlier was pneumatical (c. 1600).

1. This pneumatic tool will double the speed of assembly.: 這個氣動工具可以把裝配速度提高一倍.

2. Much of their study and revision was done to the thud of hammers and pneumatic drills.: 他們學習和復習時大多都伴著錘子和風鉆沉悶的敲擊聲。

3. Light kernels may be removed by a pneumatic or air seperator.: 輕的籽粒可以通過空氣動力,即氣流分選機清理出來.

4. Experiments in pneumatic conveying show that there exists a maximum particle concentration.: 氣力輸送實驗表明,這里存著一個最大的顆粒濃度.

5. We replaced hand picks with pneumatic picks and electric drills.: 我們把手鎬換成風鎬和電鉆.