滲碳液 的英文怎麼說
中文拼音 [shèntànyè]
滲碳液
英文
carburizing liquid-
Sap 1. the solution of mineral salts and sugars that is found in xylem and phloem vessels and oozes out of cut stems
樹液: 1 .是植物木質部與韌皮部管狀分子中存在的含多種無機鹽與碳水化合物的混和溶液,可以從植物莖上的切口處滲出。Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株對環境因子的適應性研究:無氮培養條件下,測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響,結果表明,在15 - 40下均能生長並表達固氮酶活性,其最適生長及固氮的溫度為25 - 35 ;能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮,當培養基中同時存在蔗糖和蘋果酸時,細菌生長和固氮活性最強;在偏酸和偏堿的條件下( ph4 . 5 - 8 . 5 )均能保持較強的生長勢和較高的固氮酶活性,並能通過調節自身代謝平衡並適應環境的酸、堿性變化,使培養液趨于中性:能耐受較高的滲透壓,培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大,當naci濃度升至2時,菌株的生長勢及固氮酶活性才有所下降:低濃度的鉸對其固氮酶活性影響不大,在0The liquid - gas method is improved based on the above methods, overcoming the defects of gbj82 - 85. using the liquid - gas method, permeability condition of concrete can be tested and indicated quickly, efficiently, and the influences on concrete of alkali - aggregate reaction, sulfate attack, carbonization, steel rust, freeze and thaw can be inflected indirectly. it is significant on the research and monitor on the durability of concrete
溶液氣壓法是在上述方法之上進行改進提高的,克服了國標gbj82 - 85方法中的許多不足之處,能夠多角度、快速、高效、真實、準確地再現現場混凝土的滲透情況,並且能間接反映堿-骨料反應、鋼筋銹蝕、碳化、硫酸鹽侵蝕及凍融破壞的影響,對混凝土耐久性的監測與研究具有重要意義。Over time landfills can be removed, especially those in hot climates, so as to stop leachate contamination of potential groundwater sources and to stop landfill gasses being released to atmosphere where methane is 23 times more harmful than carbon dioxide
以後垃圾掩埋法將被淘汰(特別是在熱帶氣候中)以防止可能的地下水源滲漏液污染與沼氣釋放到大氣中,如果沼氣含量擴大23倍,則比二氧化碳的危害更大。Abstract : the fesiibility of ultrasonic liquid infiltratio n method in the fabrication of cf / al composite wires is discussed. composite wires with good properties are obtained by adopting proper parameters including the preheated temperature of fiber, temperature of melting aluminum, infiltrati ng time and the ultrasonic energy
文摘:探討了超聲液相浸滲法在制備碳(石墨) /鋁復合絲過程中的適應性,通過選取適當的工藝參數,包括纖維去膠及預熱溫度、鋁液溫度、浸滲速度和引入的超聲能量等,可以得到復合質量較好、具有較高力學性能的復合絲。分享友人