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It is very important for the selection of plants. Some plants have good stability and high color fastness, such as Dioscorea cirrhosa, persimmon, betel nut, turmeric, etc. Personal experience is that the stability of gardenia is not so good, and the color is easy to fade when washed too much. For reference only. In dyeing, try to choose some plants with good stability to dye, or carry out re-dyeing, which can stabilize the color fastness. For example, we use onion skin to cover with blue dye, and persimmons have higher color fastness after covering with blue dye, and basically will not fade. Of course, according to their own needs of color and luster, other cover dyeing can also be tried.The following question: The fire truck lane should meet the requirements of disaster relief and evacuation, and its width should ensure that the fire truck can still pass after the houses on both sides of the main road are affected and collapsed. Reasonable planning, construction and renovation of fire lanes shall be carried out in the blocks. The width, spacing and turning radius of fire truck passages shall be required by relevant regulations of symbols to ensure the smooth flow of fire truck. Cities with rivers and railways passing through should take measures such as adding bridges to ensure the smooth flow of fire engines. Due to the needs of urban construction, when temporary excavation or occupation is necessary, the approving unit must promptly notify the public security fire supervision institution. GB50016-2006 Code for Fire Protection Design of Buildings 6.0. 1 The passage of fire engines should be considered for the roads in the block, and the distance between the center lines of the roads should not be greater than 160.0 m m. When the length of the building along the street is greater than 150.0 m or the total length is greater than 220.0 m, a fire lane shall be set up to pass through the building. When it is really difficult, an annular fire lane shall be set up. 6.0. 2 For buildings with closed inner courtyard or patio, when the short side length is greater than 24.0 m, fire lanes entering the inner courtyard or patio should be set up. 6.0. 3 When buildings with closed inner courtyard or patio are along the street, pedestrian passageways (stairwells can be used) connecting the street and inner courtyard shall be set up, and the spacing shall not be greater than 80.0 m m.. 6.0. 4 Facilities that affect the passage of fire engines or the safe evacuation of personnel shall not be set up on both sides of the fire lanes that pass through the building or enter the inner courtyard of the building. 6.0. 5 Gymnasium with more than 3000 seats, exceedingPublic class MyCommand implementations Command {Set up a solution刚才他和葫芦没回来的时候，众人问张家人为何还没到。太好笑了，但是我真得笑不动了。公元464年，刘子业即位，凶残暴戾，同母姐山阴公主刘楚玉，淫乐无度，门第无数。江湖第一帮派天机楼，欲推翻刘子业暴政，派长相酷似公主的女弟子楚玉，执行天机楼的命令，扶持刘彧新政。楚玉来到公主府，一边假装暴戾淫乱，一边培养心腹。并与门客容止相识，面对容止的帮助，楚玉暗生情愫。最后天机楼帮助刘彧夺位成功，刘子业被杀，真正的山阴也在叛乱中死去。虽然暴政被除，但楚玉厌倦权谋，不想回天机楼。容止出手相救，带着楚玉来到邻国。在邻国楚玉知道容止竟然是北魏皇太后的亲信，为了夺取南朝政权，潜伏在公主府忍辱负重。楚玉向容止表达爱意，容止选择了江山，楚玉伤心离开。容止其实也对楚玉用情至深，面对楚玉的毅然离开，最终还是选择楚玉，假扮观沧海，两人邻里而居。