離體根尖 的英文怎麼說
中文拼音 [lítǐgēnjiān]
離體根尖
英文
excised root tips-
Studies on tip meristem culture rapid propagation and induction of in vitro stolon of manyflower betony stachys floridana schuttl. ex benth
銀條莖尖培養快繁及離體根狀莖的誘導The effects of light, agar and carbon sources on the growth of in vitro cultured root tips of fraxinus mandshurica were studied
摘要研究了光照有無、瓊脂添加與否和不同碳源對離體培養的水曲柳根尖生長的影響。The results showed that the growth of root tips in liquid medium was better than that in agar - solidified medium and solid - liquid two phase medium, for that increasing agar concentrations in medium will reduce the root growth ; darkness was beneficial for fraxinus mandshurica root tip culture in vitro ; as the carbon sources, sucrose was better than glucose and maltose as the carbon sources, and 3 % sucrose was best for the root tip growth of fraxinus mandshurica
結果表明，不添加瓊脂的液體培養基對根尖的生長較添加瓊脂的固體培養基和固液培養基好，原因是增加瓊脂的量會抑制根的生長；暗培養比光培養更有利於水曲柳離體根尖的培養；蔗糖作為碳源的效果較果糖和麥芽糖好，其中以3 %的蔗糖對離體根尖的生長效果最好。The factors include ultrasonic wave frequence, condition temperature, ultrasonic converter instrinisic system error, hareware extended time, electricity noise and sonic noise in the spot, city power defmcient pressure and exceeded pressure, city power peak and pour. we adopt the following compensation schemes of error in the system. about ultrasonic wave frequence ' s effect to measurement precision, we can choose appropriate frequence according to the measured distance
在空氣和液壓缸中影響測距精度的主要因素包括：超聲波的頻率、環境溫度、超聲換能器本身的系統誤差（即探頭固定誤差） 、硬體時間延遲、工作現場的電噪聲和聲噪聲、市電的過壓、介壓噪聲以及市電的尖峰和浪涌噪聲，在本系統中採取了以下幾種誤差的補償方案： ?對于超聲波的頻率對測量精度的影響，只能根據測距的距離選擇合適的超聲頻率。分享友人