The mica test pieces were prepared by cleavage so as to be atomically smooth . 云母试样是用劈裂的方法制备的，因此可以达到原子级的平滑程度。
The ussr and the united states act a ceiling of 150 kilotons on underground nuclear tests . 苏联和美国规定了不超过15万吨级的地下核试验限制。
Judgings, competitions, shows and county and state fairs are all open to the students'projects . 评判、竞赛、表演和县级以及州级的市场都允许学生的项目参加。
Times of this order are deduced directly by measuring the length of the particle track in a bubble chamber . 这样量级的时间是通过测量粒子在气泡室中径迹长度直接得到的。
On a singular surface of order 1 the deformation gradient and the velocity of the medium may suffer finite discontinuity . 在1级的奇面上，媒质的形变梯度和速度可以经受不连续性。
Gravel-size material, except for broken shells which are quickly worn down, is rarely available on low shores . 相当于砾石级的物质，除了迅速被磨细的贝壳碎片外，是极少见于低位海滨上的。
This simple treatment also rationalizes the observed insensitivity of burning rates to chemical factors and pressure level . 这个简单表达式也能解释观测到的燃烧速率对化学因素和压力量级的不敏感性。
There can be no doubt that the difference between the mind of the lowest man and that of the highest animal is immense . 没有疑问，在心理方面，最低级的人和最高级的动物之间，存在着极其巨大的差别。
To do this, we weight the hourly wage for each grade by its proportion of the total labor required to produce the product . 为此，把每一等级的小时工资，以生产这种产品所消耗的该等级劳动量占总劳动量的比重为权数，进引加权。
In most states of the u. s., county level farmers organizations have a major influence on the hiring, firing and salaries of county extension agents . 在美国大多数州，县级的农民组织对县推广办的工作人员的雇用、免职和工资数额具有很大影响。
