zinc point 中文意思是什麼
zinc point
解釋
鋅點-
The main work and the conclusion of the article are : ( 1 ) give a suggestion on the reaction mechanism and the principle of catalyst selection. ( 2 ) by comparison of the catalyst activity of solid superacid with the zinc oxide, stannous chlorde and tin ( ii ) octate in the synthesis reaction. we find that although its activity is lower than tin ( ii ) octate, obviously higher than that of traditional zinc oxide and stannous chlorde. from the point of preparation cost, we select solid superacid as catalyst
但從催化劑的制備成本和工藝的角度選擇，固體超強酸具有明顯的優勢； （ 3 ）制備一系列單組元和雙組元硫酸促進氧化物固體超強酸，並用於丙交酯的合成反應，篩選具有最佳活性的固體超強酸催化劑： （ 4 ）使用so2 - 4 / zno - sno2 （ 2 ： 1 ） la3 +固體超強酸作催化劑，反應脫水時間1 -
The zinc refining furnace ( new jersey furnace ) is today the most important pyrometallurgical method for the production of zinc very high purity, where the impurities is of different boiling point from the zinc
鋅精餾爐（ newjersey爐）是利用粗鋅中其它雜質成分與鋅具有不同沸點，而生產高純鋅最主要的火法精煉方法。 -
But the melting point of zinc is about 420 a nd it ' s vaporating point is 906
但鋅的熔點約為420 ，揮發溫度為906 ，不利於焊接。 -
By contrast the traditional zinc oxide catalyst and from the point of preparation cost, we decide use sulfuric acid activated solid superacid as synthesis catalyst
從催化劑效率和成本的綜合因素考慮，對比傳統的催化劑氧化鋅，本文提出了使用硫酸促進的氧化物固體超強酸作為合成反應的催化劑。 -
A metallurgical coating process in which iron or steel is immersed in a powder of another metal, such as zinc, chromium, or aluminum, and heated to a temperature below the melting point of either
滲碳處理一種冶金鍍膜工序，在此工序中把鋼或鐵浸入另一種金屬如鋅、鉻或鋁的粉劑里，並加熱至這一金屬的熔點溫度以下 -
It is madeof quality steel plate, which is stretched forming, point welded and plastic sprayed with bubble cement filler filled in its inner cavity. its pedestals are plated with zinc and cast aluminum alloy, which height is adjustable and can be self - locked
四角連體支承結構，採用優質鋼板經拉深成型點焊噴塑，內腔填充發泡水泥填料，支座為鍍鋅及鑄鋁合金結構，高度可調並能自鎖。 -
Contrastive tests of damping aluminum - alloys, zinc - alloys and 45 # steel are carried out at the case of equal stiffness. the test results show that when the rocker bar is made of damping aluminum - alloys or damping zinc - alloys, the strain amplitude at the middle point of connecting bar is half of the one when the rocker bar is made of 45 # steel
在等剛度條件下對鋁基、鋅基阻尼合金和45鋼阻尼減振作川進行了對比實驗，實驗結果表明搖桿為鋁基和鋅基阻尼合金材料時，連桿中點動態應變曲線幅值只有45鋼時的一半左右，而且隨著曲柄轉速的提高，阻尼合金的減振效果更加明顯。 -
Alkaline zinc - manganese battery is widely used all over the world it has good performance of storage ， low cost ， stable discharge and convenience of carrying the sealing of the battery is a crucial factor to the performance of the battery due to the disadvantages of present sealants ， leakage of electrolyte often happens what ’ s more ， the sealing capability affects the performance of the battery the way to raise the sealing capability is to search for a good additive ， which can improve the sealing capability through adding according to chemical principles ， this article picks out ptfe and nylon66 as additive adding ptfe or nylon66 into the pitch can improve the sealing capability of the pitch at the same time ， the temperature ， the time ， the amount of addictive ， the way to drop temperature and the time of churning all should be considered by testing the constitutions ， softening point ， moving degree and length of needle of various pitch samples ， we can compare the properties of different sealants can be studied by using of x - ray, the constitutions of the pitch can be indicated which can help us to explain these changes this article includes ： testing the constitutions ， soften point ， moving viscosity and needle penetration of various pitches ； raising the sealing capability by adding ptfe nylon66 into the pitches ； testing the constitutions ， soften point ， moving viscosity and needle penetration of raised samples ； analyzing and discussing the basic principles of this method it is showed that soften point ， moving viscosity and needle penetration of pitches are increased by adding ptfe nylon66 and the discharge time ， initial voltage ， capacity of battery with pitch raised by nylon66 are good and get to the requirement of gb t7 1 1 2 in a11 the method proposed in this article is available in practical industry use
通過測定改進瀝青的軟化點、運動粘度和針入度等指標參數來比較不同的添加劑及不同的添加條件對瀝青封口性能的影響。本論文的主要研究結果為：系統測試了多種瀝青樣品的組成、軟化點、運動粘度、針入度；對市售瀝青分別添加聚四氟乙烯乳液、有機硅樹脂和尼龍66進行改進，制備了改進產品；對改進瀝青的組成、軟化點、運動粘度、針入度進行了測試和比較；使用改進瀝青組裝成電池並對電池進行恆電流放電測試、短路電流測試和電池漏氣、漏液性能的測試；對瀝青改進的原理進行了分析和討論。實驗結果表明：在瀝青中添加尼龍66和聚四氟乙烯乳液對瀝青的封口性能有明顯的提高；通過對工藝條件的不斷改進，目前的工藝條件已完全可以用於實際生產操作；以添加尼龍66改進的瀝青為封口劑組裝成的電池完全滿足堿錳電池生產的需要，且電池電容量、短路電流等指標均達到gb t7112標準要求；本文提出的改進方案，通過驗證是一種效果好、實用性強的方法。 -
In the zinc deficient cumulic cinnamon soil of northern china often encountered by dry climate, although the storing water in lower soil depth could not promote early maize plant to take up more zn from soils, our research gave a clear point that soil water in upper soil layer was important to enhance the influence of zn application in topsoil on early maize growth
表層土壤水分對苗期玉米植株鋅吸收總量有顯著影響，乾旱條件下，玉米植株鋅吸收總量下降；底層土壤水分供應狀況對玉米鋅濃度影響不大，但植株中鋅向地上部運轉增加。
分享友人