單字p-的中文意思與發音


p-


    para-;positive







單字p-的中英文例句與用法


對偏流在p-n結上有比例地發光;外貌決定於材料。
Light emitted at a p-n junction is proportional to the bias current; color depends on the material used.
給雄性atx大鼠皮下注射丙酸睾丸素可使其肝微粒體mfo活力恢復。
After subcutaneous injection of testosterone propionate hepatic p-450content and demethylase activity restored in male atx rats.
計算表明:冷凝回流溫度的升高、回流比的降低和反應壓力的升高都導致反應溫度增加,雖然醋酸和對二甲苯的副反應消耗增加,但液相中對羧基苯甲醛的品質分數降低和反應收率增加。
The results show that the yield of terephthalic acid increases and the mass fraction of4-carboxybenzaldehyde decreases when the reflux temperature or the reaction pressure increases or when the reflux ratio decreases but that the combustion rate of p-xylene and acetic acid increase simultaneously.
介紹了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、聚氯乙烯三氯化鐵樹脂、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、硼酸、固體超強酸和雜多酸等固體酸催化合成肉桂酸甲酯的方法。
The catalytic synthesis of methyl cinnamate with p-toluene sulfonic acid amino sulfonic acid strong acidic cationic exchange resin ferric chloride hexahydrated polyvinyl chloride-ferric chloride resin stannic chloride pentahydrate ammonium ferric sulfate dodecahydrate sodium bi-sulfate monohydrate potassium bisulfate boric acid solid supper acid and heteropoly acid etc.were reviewed.
介紹了水泥攪拌樁的加固原理、適用範圍和深層攪拌機械的分類,分析了水泥土的物理化學性質和力學性質,論述了水泥攪拌樁的施工工藝、施工品質保證體系和品質檢測方法。
This paper introduces the reinforcing princi pl e and applying scope of the cement mixing pile and the classification of the dee p-mixing machines analyzes on the physicochemical property and mechanical prope rty of the cement soil discusses on the construction techniques construction q uality guaranteeing system and the quality detection methods of the cement mixi ng pile.
它們吸附對二甲苯的容量和選擇性都很高。
Their adsorption capacity and selectivity for p-xylene were high.
通過對有限秩的無扭阿貝爾群的商群的討論,得出了對有限秩的無扭阿貝爾群的結構的一種刻劃即:設g為有限秩的無扭阿貝爾群,g是非p可除的(p為素數),那麼存在著子群g*,使得(1)g*為自由阿貝爾群;
A wsv to discribe the structure of a torsion-free abelian group with finite rank is found by studying its quotient group.let g be a torsion-free abelian group with finite rank not p-divisible where is a prime.
為了研究不同岩石中泊松比及其各向異性隨圍壓的變化,選取19塊典型的岩石樣品,在不同圍壓下沿相互正交的3個方向同時測量縱、橫波速度,並通過計算得到了泊松比及其各向異性。
To study the changes of poisson's ratio and its anisotropy with confining pressure we measured p-and s-wave velocities in three orthogonal directions in19rock samples under different confining pressures.
文中對雙組分體系在calgon活性炭上的競爭吸附也做了研究,結果顯示對二甲苯的吸附能力最強,醋酸次之,醋酸甲酯的吸附能力最弱。
The results showed that the adsorption capacity of p-xylene on calgon ac was more than that of acetate acid while methyl acetate was the least.
在p型和n型半導體材料之間渡越區中的一個面,在這裡施主雜質和受主雜質的濃度相等。
The surface in the transition region between p-type and n-type semiconductor material at which the donor and acceptor concentration are equal.
在實際應用,中在一個半導體晶體上總是同時形成一個n型和一個p型,組成一個正p-n結。
In practical use an n-type and a p-type are created side by side in the same semi-conductor crystal forming a p-n junction.
摘要建立了一個用於模擬對二甲苯氧化制對苯二甲酸過程的連續氣液攪拌釜反應器模型。
A computer code for simulating continuously stirred gas-liquid reactors of p-xylene oxidation to terephthalic acid was developed.
摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。
The synthesis methods of isobutyl acetate catalyzed by p-toluene sulfonic acid amino sulfonic acid strongly acidic cationic exchange resin ferric chloride hexahydrate cupric chloride bi-hydrate stannic chloride pentahydrate ammonium ferric sulfate dodecahydrate sodium bisulfate monohydrate potassium bisulfate chitosan sulfate sodium dihydrogen phosphate rare earth metallic oxide solid super acid heteropoly acid and molecular sieve etal were reviewed.
摘要以丁二酸和異丙醇為原料及對甲基苯磺酸為催化劑,催化合成丁二酸二異丙酯。
Diisopropyl succinate was synthesized from succinic acid and isopropanol with p-methyl benzenesulfonic acid as catalyst.
這些土壤上推薦使用的技術措施有:石灰與石膏同時施用以加深根系,熱法磷酸鹽作磷肥,並使用酒糟、濾餅和蔗渣等糖廠副產品作為有機質和必需養分來源。
Among the technologies recommended for these soils are: lime associated with gypsum for a deeper root system p-fertilization with thermophosphate and the use of sugar mill by-products like vinasse filter cake and bagasse as source of organic matter and some essential plant nutrients.

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