自生酸變 的英文怎麼說
中文拼音 [zìshēngsuānbiàn]
自生酸變
英文
spontaneous souring-
It can germinate at 0 ? and develop at 3 - 5 c even suffer from chilliness of - 21 c. at the fifth or sixth year, it ablooms at july, fruits at august or september. when the seeds are scattered by wind, the plant turn to death
其自然生長環境的土壤偏酸性，有機質含量極低，氣候多變，最高月平均溫度3 5 ，最低月平均溫- 19 - 21 ，年降水量800mm ，無霜期僅有50d左右。In order to solve the problems made by the manual strong acid cleaning, such as the deformation and thickness tolerance of part, pollution problem, expensive cost and low production efficiency
摘要為了解決銅及銅合金手工強酸清洗存在的問題，如工件變形和厚度一致性差、環境污染大、成本高及生產效率低等問題，研究了銅及銅合金的自動化清洗生產方式、處理流程和工藝配方。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 baneling is a small suicidal creature which morphs from the zergling. filled with explosive chemicals and corrosive acids, it is the perfect weapon against massed ground targets
毀滅蟲是體型較小的自殺生物；他們由跳跳變形而來。他們體內充滿了爆炸物和酸液，是對付密集地面目標的完美武器。The abnormalities in the seasons and the weather, the rapid melting of the polar ice cap, the rising temperature of the oceans, the continuous expansion of the hole in the ozone layer, the acid rain given back to us by mother earth, sinking land masses and rising sea levels - what do all these reactions of the natural environment tell us that things turn for the worse when they reach the extreme seems not to be something which people take heed of
人類賴以生存的地球已是岌岌可危，生態環境在不斷的破壞下已產生了顯著的變化，四季氣溫異常北極冰巖急速溶化海水水溫高漲臭氧層的破洞繼續擴張大自然「還贈」給人們的酸雨陸地下陷海平面上升，這種種的自然界反應到底給了我們什麼啟示？物極必反的道理，似乎很難在人們心中起警惕的效應。The addition of aluminum sulfate caused the chemical shrinkage of cement mortar to reduce a little, but induced net plasma self - shrinkage to grow into expansion. that reason was that ettringite was produced by reaction between aluminum sulfate and hydration products
硫酸鋁摻入水泥中，可以使水泥漿的化學收縮有少量的減少，但可以使水泥凈漿的自收縮改變為膨脹效應，這是因為其與水泥水化的生成物反應生成了鈣礬石。All those series of surface treating agents are widely used in manufacturing cars, tractors, motorcycles, bicycles, building machines, transformers, transducers, and mechanical and electrical appliances - before the finishing of these products. they are also used in drawing of steel wires and tubes, in cold rolling and acid pickling of steel articles
本公司生產製造金屬表面處理劑的系列產品除油劑除銹劑表調劑磷化劑鋁合金清洗及氧化劑等，該系列產品廣泛用於汽車行業拖拉機行業摩托車自行車工程機械變壓器換熱器機電產品家用電器及其他機械產品的塗裝前處理，鋼絲鋼管的拉拔鋼鐵冷軋酸洗等。Jonathan katz, of the university of washington, who worked out the details of the mpemba effect, said the solutes are calcium and magnesium bicarbonate, which make most drinking water " hard " and when the water is heated, these elements precipitate to form the solid scale that " furs " up the inside of a kettle
來自華盛頓大學的jonathan katz ，發現了姆潘巴現象的細節。他說，溶質是鈣和鎂的重碳酸鹽，這些物質使很多飲用水變得很「硬」 ，當水被加熱后，這些物質沉澱生成了固體物質，並在水壺內壁形成水垢。The product can be used in plastics, varnishes, enamel, cosmetics, textiles, printings, etc. the laboratory experiments were made on the hydrolysis of ticl4 solutions and deposition films of titanium hydroxides and oxyhydroxides onto the mica powder. and mainly studied the structure transformation of hydrolysis and deposition of the ticl4 solutions and the dehydrolysis of the titanium hydroxides and oxyhydroxides under the sinter processing. exclude mica powder, the specifically hydrolysis and deposition of some other metal salt such as fecl3 solutions and the dehydrolysis of the metal hydroxides and oxyhydroxides under the hydrothermal processing were also studied
本實驗採用金屬鹽水解沉澱法，在雲母粉表面鍍覆tio _ 2 、 fe _ 2o _ 3 、 cr _ 2o _ 3 、 co _ 2o _ 3等不同的系列金屬氧化物薄膜，通過實驗室和中間試驗研究了雲母珠光顏料的全部製作過程，並重點研究分析了鍍膜過程中偏鈦酸沉澱物自ticl _ 4溶液中水解析出的結構變化過程以及焙燒過程中氫（羥）氧化鈦縮合脫水生成氧化鈦的結構變化過程。Two pta - mutants have been selected by using suicide substrate after the mini - tn5 transposon insertion mutagenesis of klebsiella pneumoniae m5al. when used in microaerobic fermentation, the amount of acetate produced by the mutants reduced to less than 50 % of the parent strain, and the yields improved whereas the 1, 3 - propanediol titers and productivities decreased
以klebsiellapneumoniaem5al為出發菌株，用mini - tn5隨機轉座誘變結合自殺性底物篩選的方法得到了兩株產乙酸途徑pta基因缺失突變株xl - 6和xl - 11 ，應用到微氧法發酵中，突變株的乙酸產量為親株的50以下，甘油轉化率有所提高，但1 ， 3 -丙二醇濃度和生產強度有所下降。Abstract : in surface oil and gas geochemical exploration, the physiographic environments of the geochemical surveying points, especially the variation of the soil media, will exert obviously different interferences on different technical indices. a comparison of anti - interference capacities between such techniques as adsorbed filaments, acid - dissociated hydrocarbon and phase state hydrocarbon reveals that the adsorbed filament index has evident anti - interference capacity
文摘:地表油氣化探中，測點所處的自然地理環境，特別是樣品介質條件的變化，對不同方法指標所產生的干擾作用有明顯的差異，通過對吸附絲、酸解烴和相態烴方法的抗干擾性比較，發現吸附絲指標具有明顯的抗干擾能力。分享友人