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- 压延布一段有牢度一段没牢度是怎么回事
2018-11-23 04:17:14
308
0
- PVC挤出机挤出黑色的料是怎么回事?一段正常,一段时黑色的
2013-05-24 08:08:38
375
3
- 生物显微镜观察标本时会一段模糊一段清晰吗
2017-02-16 10:25:38
337
1
- 帮忙翻译一段英语
- Plant material and culture conditions have been described (7). Briefly, a diploid tissue culture line, WOO1C, of wild carrot, Daucus carota L., was maintained in Murashige and Skoog medium supplemented with 0.1 mg of 2,4-dichlorophenoxy... Plant material and culture conditions have been described (7). Briefly, a diploid tissue culture line, WOO1C, of wild carrot, Daucus carota L., was maintained in Murashige and Skoog medium supplemented with 0.1 mg of 2,4-dichlorophenoxyacetic acid (2,4-D). To regenerate plants from the culture, callus tissue was transferred to the same medium devoid of 2,4-D (embryogenic medium). All experiments were performed with cultures grown in liquid medium. For convenience, cultures grown in 2,4-D-containing medium are referred to as "callus cultures", and those grown in medium without 2,4-D as "embryo cultures." The growth of callus cultures was measured by the sidearmturbidity method (7). The number of cells at any time point of growth was estimated from turbidity in a Klett-Summerson calorimeter and was expressed in arbitrary units. For example, Klett 100 corresponds to ="2 X 106 cells per ml. The relationship is linear up to Klett 150 in our Klett-Summerson colorimeter. Suspension cultures ofWOOLC cell line are normally maintained at cell densities between 106 and 107 cells per ml in 0.1 mg of 2,4-D per liter (high-density culture) in shake flasks. During a quantitative study on embryogenesis, we found that maximal embryo production can be achieved by first incubating the culture at high density in medium without 2,4-D for one generation time and then diluting it to 2-3 x 104 cells per ml (low-density culture). To compare cultures of comparable density, callus cultures and embryo cultures were subjected to the same procedure. To initiate low-density embryo or callus cultures, an 8-day-old high-density culture grown at the logarithmic phase was washed three times with fresh callus or embryogenic medium and resuspended at 8 x 105 cells per ml for one generation (3 days) in its corresponding medium. It was then diluted to 2 x 104 cells per ml; 20 ml of the culture was incubated in a plastic Petri dish (9 cm in diameter) at 240C. The morphogenetic events of the cultures were examined and photographed under a dissecting microscope. 请不要用google的那个,我看不懂~~ 展开
2008-02-19 03:32:04
446
2
- 寻找涤棉高品质口袋布色牢度3-4
2018-11-27 15:17:08
295
0
- TC布黑白拼接色牢度怎么解决
2017-03-14 09:44:53
244
1
- 气相的基线突然凹下去一段怎么回事。fid检测器
2015-06-30 19:24:06
400
1
- 抽查16%色牢度不合格 什么是色牢度
2017-02-16 13:33:31
272
1
- 什么是耐晒牢度
- 它反应什么性质
2016-01-21 00:51:18
403
2
- 单片机温度传感器一段程序问题
- 这个函数的作用是什么下面是定义和该函数#include
#include typedefunsignedcharU8;//用U8代替unsignedchartypedefunsignedintU16;//用U16代替unsignedintU8U8FLAG... 这个函数的作用是什么 下面是定义和该函数 #include #include typedef unsigned char U8; //用U8代替unsigned char typedef unsigned int U16; //用U16代替unsigned int U8 U8FLAG; U8 U8count,U8temp; U8 U8T_data_H,U8T_data_L,U8RH_data_H,U8RH_data_L,U8checkdata; U8 U8T_data_H_temp,U8T_data_L_temp,U8RH_data_H_temp,U8RH_data_L_temp,U8checkdata_temp; U8 U8comdata; DS18B20=P2^0; void COM(void) { U8 i; for(i=0;i<8;i++) { U8FLAG=2; while((!DS18B20)&&U8FLAG++); Delay_10us(); Delay_10us(); Delay_10us(); U8temp=0; if(DS18B20) U8temp=1; U8FLAG=2; while((DS18B20)&&U8FLAG++); //超时则跳出for循环 if(U8FLAG==1)break; //判断数据位是0还是1 //如果高电平高过预定0高电平值则数据位为1 U8comdata<<=1; U8comdata|=U8temp; //0 } } 展开
2015-11-22 09:06:48
324
2
- 棉锦布干磨色牢度如何提高
2018-12-18 13:14:38
243
0
- 请教布的耐磨度,色牢度什么意思?急急...
2018-11-27 08:31:42
359
0
- 涤氨纶汗布色牢度!!!急急急!!!
- 谁知道那家染厂能做涤氨汗布KJ的黑色能做到4-5级。知道的请与18913635396 陈。。联系。
2009-06-23 21:48:43
322
1
- 耐光汗色牢度和耐光色牢度,耐汗色牢度有什么区别?
- 针织测试色牢度中有耐光、耐汗、耐光汗,前两种和第三种有什么区别?
2014-05-22 18:20:11
412
1
- 海水色牢度与氯水色牢度有差别吗
2017-09-13 20:15:22
398
1
- 磁翻板液位计装在大型储罐外侧,一般一段是多长
2015-12-30 10:52:01
396
1
- 我有一段英文,看不明白,求翻译
- Thetubewillbesupportedbypillarswhichconstrainthetubeintheverticaldirectionbutallowlongitudinalslipforthermalexpansionaswellasdampenedlateralsliptoreducetheriskposedbyeart... The tube will be supported by pillars which constrain the tube in the vertical direction but allow longitudinal slip for thermal expansion as well as dampened lateral slip to reduce the risk posed by earthquakes. In addition, the pillar to tube connection nominal position will be adjustable vertically and laterally to ensure proper alignment despite possible ground settling. These minimally constrained pillars to tube joints will also allow a smoother ride. Specially designed slip joints at each stations will be able take any tube length variance due to thermal expansion. This is an ideal location for the thermal expansion joints as the speed is much lower nearby the stations. It thus allows the tube to be smooth and welded along the high speed gliding middle section. The spacing of the Hyperloop pillars retaining the tube is critical to achieve the design objective of the tube structure. The average spacing is 100 ft (30 m), which means there will be near 25,000 pillars supporting both tubes and solar panels. The pillars will be 20 ft (6 m) tall whenever possible but may vary in height in hilly areas or where obstacles are in the way. Also, in some key areas, the spacing will have to vary in order to pass over roads or other obstacles. Small spacing between each support reduces the deflection of the tube keeping the capsule steadier and the journey more enjoyable. In addition, reduced spacing has increased resistance to seismic loading as well as the lateral acceleration of the capsule. 有些桥墩与管道之间的细节问题希望能仔细处理清楚,十分感谢!! 追加15分! 能手动翻译一下吗?! 展开
2013-12-03 16:23:25
225
2
- 水洗色牢度和皂洗色牢度是一样的吗?
- 如题~~
2018-11-22 03:08:12
316
0
- 什么是海水色牢度
2018-11-29 07:19:36
233
0
- 什么是色牢度测试
2016-08-21 14:45:31
315
1
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