1.
In 3 intoxicated cases,the concentration was 4.65-5.3 ng/ml.
中毒组(3例)为4.65～5.3毫微克/毫升。
2.
One billionth(10-9) of a gram.
毫微克十亿分之一克（10－9）
3.
A normal PSA measurement is less than 4 nanograms per milliliter of blood;
正常情况下，每毫升血中PSA数值应低于4毫微克。
4.
The sensitivity of this method is 0.031ng/1%.
本方法?对灵敏度为0.031毫微克/1%吸收;
5.
The detective limits are as low as 20ng/μl. The relative errors aro about10%.
检测极限约为20毫微克/微升,相对误差小于10%。
6.
Chemistry that deals with minute quantities of materials, frequently less than one milligram in mass or one milliliter in volume.
微量化学研究极小数量物质的化学，通常研究对象质量小于一毫克或体积小于一毫升
7.
The level of such particulates is measured in micrograms per cubic meter of air.
微粒的测量方法，是计算1立方米空气里有多少毫克。
8.
The expermental results of a250 kv280 ns reactor-isolating-type Marx generator are given in this paper.
本文给出了250千伏280毫微秒电感隔离型马克思发生器的试验结果。
9.
Ns [Nanosecond]
毫微秒[十亿分之一秒
10.
osecond pulse height analyzer
毫微秒脉冲振幅分析仪
11.
subnano second-emitter coupled logic
亚毫微秒射极耦合逻辑
12.
digital nano voltmeter
数字式毫微伏电压表
13.
double pulse nanosecond oscillator
双脉冲毫微秒振荡器
14.
nanosecond time-resolved spectrosecopy
毫微秒时间分辨光谱学
15.
A unit of length equal to one femtometer(10-15 meter).
费米长度单位，等于一毫微微米（10－15米）
16.
A unit of weight for precious stones, equal to200milligrams.
克拉宝石的重量单位，等于200毫克
17.
"carat:a unit of weight for precious stones, equal to 200 milligrams."
克拉:宝石的重量单位,等于200毫克。
18.
A unit of mass equal to one thousandth(10-3) of a gram.
毫克质量单位，等于千分之一（10－3）克