dusty material 中文意思是什麼

dusty material 解釋
多塵物質
  • dusty : adj. 1. 滿是灰塵的,灰濛濛的。2. 土灰色的;(酒)濁的。3. 灰塵似的,粉狀的。4. 枯燥無味的。5. 曖昧的;含糊的。6. 無價值的。
  • material : adj 1 物質的(opp spiritual)。2 身體上的,肉體上的;物慾的,追求實利的;卑俗的。3 有形的,實體的...
  1. Cma, as an alternate deicer, tends to inhibit corrosion and appears to be relatively harmless to the environment. but cma is expensive because of the high price of its material, and it has less ability in melting ice than sodium chloride. besides these, cma sticks to wet surfaces and can congeal to form hard chunks, difficult to store for a long time, dusty and a strong vinegar smell when spread

    而cma是對氯化物鹽除冰劑的重大改進, cma具有無污染,環保的特點,對金屬幾乎無腐蝕,但由於原料價格昂貴,使得cma的價格不菲, cma對冰的融化能力不如氯化鈉, cma易結塊,不宜長期儲藏,在撒布時形成的粉塵及刺鼻的酸味亦是需要改進的地方。
  2. Nasa ' s stardust craft passed through the dusty shroud of a comet called wild 2 in 2004 and last january dropped to earth a canister of the material that the mission had collected ( sn : 3 / 25 / 06, p. 182 : http : / / www. sciencenews. org / articles / 20060325 / fob7. asp )

    美國國家航空航天局的「星塵」號飛行器2004年穿過一顆名叫「維德爾2 」的彗星的彗尾,並於去年一月( 2005年)返回了地球,帶回了一罐這項任務收集的物質。
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