1.直径
2.(显微镜等的)放大倍数
1.a straight line that crosses a circle through the center, or the length of this line
1.Spot diameters of just a few thousands of an inch can readily be attained with convenient short focal length lenses.
用普通的短焦距透镜不难得到直径只有几十微米的光点。
2.The BET areas, pore volumes and average pore diameters of the two organo-bentonites were decreased as compared to that of Na-bentonite.
有机改性膨润土的比表面积、孔隙体积和平均孔径相比钠化膨润土均有所降低。
3.So we're going to get a list here of the diameters of the ball bearings, and the diameters is in inches.
我将列出这些，滚珠的直径，以英尺作为单位。
4.The numbers of young trees average length of different branches, numbers of root and biomass increased as the basal diameters increased.
白榆天然下种更新幼树分枝数量、各级枝平均长度、各部分生物量也随地径的增大而增多。
5.Prototype electron emitters have been developed with diameters of a few nanometers.
电子发射管的样品已经开发出来，其直径只有几纳米。
6.The metering rod either has two or more steps of different diameters or is tapered at its lower end .
量油杆可以有两个或更多个不同直径的台阶，或在它的下端被逐渐削成锥形。
7.The size of a pancake is given by the pancake's diameter. All pancakes in a stack have different diameters.
给定煎饼的半径作为其尺寸，一叠煎饼的大小各不相同。
8.It's found that successful two-phase pulse detonations can be achieved in tubes with diameters less than cell size of mixtures.
研究发现，在内径小于混合物胞格尺寸的爆震管内，可以形成充分发展的两相脉冲爆震波。
9.Among them, the inlet and outlet throttle hole diameters of the control volume are the key for the better injection performance.
其中，控制室进出口节流孔孔径的合理匹配和组合对获得良好的喷油特性尤为关键；
10.A certain volume of ink samples for the set pressure, some time, the expanded into cylinder diameters that represents the size, in mm.
一定体积的油墨样品在规定压力下，经一定时间，所扩展成圆柱体直径大小，以毫米表示之。