substract 中文意思是什麼
substract
解釋
相減-
Cyclamen persicum was carried on with substract culture testing by useing of different complex substrate
摘要用不同復合基質對仙客來進行基質栽培試驗。 -
This experiment passing to grope for the carbon source constitutes of the culture medium and using t. reesei rut c - 30 induced the expression of # - mannanase ( # - 1, 4 - mannan mannohydrolase ec 3. 2. 1. 78 ). in this experiment i put the constant carbon source ( lactose and locust bean gum ) in the foundation culture medium ( mandels nourishment liquid ) of t. reesei rut c - 30, then proceeded the variable carbon source ( dragon spruce fiber, com rush pith fiber, wheat straw fiber, wheat straw xylan, corn rush pith xylan, dragon spruce mannan ) to single factor, double factor, three factor, four factor and five factor orthogonal experiment. 1 determined the activity of p - mannanase using locost bean gum as substract by the 3, 5 - dinitosalicylic acid method, and observed the growing situation of the gernic at the end i selected the directions for the inducement expression of the # ? mannanase from trichoderma reesei rut - c30 that contained the dragon spruce fiber, wheat straw xylan, dragon spruce mannan
在里氏木霉rutc - 30的基礎培養基( mandels營養液)中加入固定碳源乳糖和槐豆膠,然後將可變碳源(雲杉纖維、玉米芯纖維、麥桿纖維、麥桿木聚糖、玉米芯木聚糖、雲杉甘露聚糖)進行單因子、雙因子、三因子、四因子、五因子的里氏木霉rutc - 30正交培養實驗,並以槐豆膠為底物用3 , 5二硝基水楊酸法測定培養液中?甘露聚糖酶的活力。從而確定了酶活最高且菌體生長良好的含雲杉纖維、麥桿木聚糖和雲杉甘露聚糖的誘導培養基為最佳培養基,用該培養基培養的里氏木霉( t . reesei ) rutc - 30使其轉錄的-甘露聚糖酶( - 1 , 4 - mannanmannohydrolaseec3 . 2 . 1 . 78 ) mrna量能夠滿足rt - pcr的要求。 -
Niger with phytase activity about 2250 u / ml which selected by protoplast - uv mutation was used as original, prepared it into fungu - suspend - liquid, through uv mutation, daub on the filter - substract. pre - primary - selection was according to the lucency - circle, primary - selection was one fungus inoculate one flask to ferment, secondary - selection was using several high phytase activity fungus through one fungus inoculate 2 - 3 flasks to ferment. then one or two high phytase activity fungus of the secondary selection were used in the next mutation cycle
首先用粗略制備的原生質體經紫外誘變篩選到一株酶活為2250u ml的實驗出發菌;制備成菌懸液,紫外燈下照射誘變,紅光下塗抹篩選平板,恆溫培養2 3d ;按透明圈大小進行預初篩,挑選徑圈比大的菌落接斜面,恆溫培養3d ;按一株一瓶的方式進行初篩;從中選取酶活較大的3 5株,按一株2 3瓶的方式進行復篩;挑取酶活大且穩定的1 2株進入下一代誘變篩選。 -
The association between the clinical performance and steal phenomena in patients with subclavian artery occlusive disease : a transcranial doppler and digital substract angiography study
鎖骨下動脈盜血綜合征的臨床表現與盜血程度及類型的關系 -
The digital computer, in its computation section, can do mainly two things - - add or substract
數字計算機的運算部分主要有兩項功能:加和減。 -
The optical information processing such as griddle filter and image plus & substract are realized by using the system
討論了利用光學4f系統進行光學信息處理的基本原理,並據此提出了模擬光學4f系統的演算法。 -
This kind of design base on this kind of thought : it is very easy to adding something on a simple than substract from a complex thing
這種設計理念基於這樣一種設計思想:往一個簡單的東西上面加東西,要比從一個復雜的東西上面減東西,容易得多。 -
This is a basic calculator ( add, substract, multiply, divide, square root ). the primary advantage is : the calculator is very easy to use you can operate just pressing one key
有最簡單的計算力(加減乘除及平方根) ,特色是非常易用,所有操作你只要按一個鍵就可以了。
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