- 平均直径
- average: n. 1.平均，平均数。 2.一般水平，平均标准。 3. ...
- diameter: n. 1.直径。 2.(显微镜等的)放大倍数。 短语和例 ...
- mean diameter average grain diameter: 土的物理性质平均粒径
- average cladding diameter: 平均包层直径
- average core diameter: 平均纤芯直径
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average diameter中文什么意思
- 平均直径
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例句与用法
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- The sem shows : the c60 thin films , which were prepared in vacuum condition , consist of spherical cluster and have an average diameter about of 20 ~ 50nm . while in gas condition , the average diameter from 50nm to 200nm , and the average diameter of particles increases with the increase of gas pressure
Sem测量表明：真空条件下制备的c60薄膜表面粒子粒径约20 50nm ；气氛(氮气和氩气)条件制备的薄膜表面粒子粒径为50 200nm ，并随气压的增大而增大，表面结晶现象也随气压增大而明显。 - Using the mouse fetal ovary serum - free culture model , fetal ovaries from 14 day post coitus ( 14 dpc ) mouse were cultured , and treated by ay9944 - a - 7 , nystatin and rs - 21745 . the results showed that 0 . 025 , 0 . 0625 and 0 . 125 um ay9944 - a - 7 or 25 , 50 and 75 iu / ml nystatin increased the total number of follicles per ovary significantly ; however , ay9944 - a - 7 and nystatin at the same doses could n ' t cause the same effect on the number of growing follicles and the average diameter of five largest follicles per ovary . 50 u . m rs - 21745 decreased the total number of follicles , the number of growing follicles and diameter of follicles per ovary significantly after 48 h
首先利用小鼠胚胎卵巢的体外无血清培养模型，培养妊娠14天( 14daypost - coitus , 14dpc )小鼠胚胎卵巢，分别添加能促进mas积累的ay9944 ，制霉菌素，和能抑制mas产生的rs - 21745进行处理，结果表明： 0 . 025 、 0 . 0625利0 . 125 m的ay9944 - a - 7与25 、 50和75iu ml的制霉菌素能显著提高卵巢中形成卵泡的总数量，但是对生长卵泡数和卵泡直径的作用不同；而mas合成抑制剂rs - 21745能够显著降低形成卵泡的总数量。 - Applying strain - energy distributing theory during col1iding and energy ruler during colliding , the paper put forwards the critical velocity equation which rock - mass destroy when colliding occuf , and other severa1 equations to make certain average velocity and motion direction after collide . at the same time , the equation to make certain the value of energy to make rock - mass destroy has been deducted , and on the base of this , the paper brings forward the equation to calculate average diameter after rock - mass falls into pieces by the way of word - cost theory . accordingly , the paper perfectly studies the effect of falling into pieces in the course of landslide colliding
( 3 )首次应用碰撞过程应变能“分配”原理及岩体破坏的能量条件，导出了滑坡岩体在碰撞时发生破坏的临界速度公式及碰撞后滑坡岩体的平均速度和运动方向的确定公式，导出了碰撞过程用于岩体破碎的能量计算公式，并在此基础上，利用功耗原理，提出了滑坡岩体破碎后平均块度的计算关系式，从而较完整地分析了滑坡岩体碰撞的解体破碎效应。