top material

基本解释

With rising of temperature, top material in the temperature-sensing working move to port A.
随着温度升高，感温元件（阀芯）内的顶杆，向A口移动。
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The top material admission balance, gas admission, gas exhaust effect of the uniformity of fluidized heights in multistage fluidized bed were studied.
研究了顶层进料均匀性、进气及排气方式对多层流化床流化料层高度均匀性的影响。
Said production method includes the following steps: making a top material and a bottom material be tightly combined together by closing their peripheral edges so as to form a hollow cavity chamber;
该顶材料，是以具延展性材料制成，并以边缘重叠地贴合于该底材料的一顶面；该中空容室，是由该顶、底材料密合后所构成的密封腔室；
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One such material is asphalt, a substance often placed on top of buildings and used to cover road surfaces.

Antique gun collectors take notice: on Nov. 15, 16, and 17 in San Francisco, premier firearms auctioneer Greg Martin is holding a series of four sales loaded with top material.
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In the years that followed, Gonzales stored this information and 17 other documents that the inspector general discovered in a safe outside his Justice Department office that also was not designated as protected for such top secret material.
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At that range the wadding material could penetrate the top and bottom of a combat boot and the intervening biological material.
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