These ions pass through a slit of variable aperture and then enter the magnetic field analyzer . 这些离子通过可变宽度的狭缝进入磁场分析器。
This energy uncertainty in turn appears as a variability in the apparent mass of the particle . 这种能量的不确定范围，又表现为粒子表观质量的可变性。
As mass can vary in several circumstances this definition is unsound and misleading . 由于质量在某些情况下是可变的，这个定义就不严格而且会令人误解。
Since the molecules are in motion, a very small volume will contain a variable number of molecules . 由于分子处于运动状态，一个很小的体积将含有可变的分子数。
The enzyme may exist in two interconvertible, active forms which possess different activation energies . 酶可以以两种相互可变的、具有不同活化能的活性形式存在。
Consider a container whose volume can be varied, such as a cylinder provided with a movable piston . 现在，我们考虑一体积可变的容器，例如一只具有可移动活塞的气缸。
Sometimes the only measure used is a variable export tax that is waived when world prices become too low . 有时使用的唯一手段就是可变的出口税，当国际价格过低时，即予免税。
Another method of obtaining variable budgeting is to establish alternative budgets for alternative eventualities . 另一个编制变动预算的方法是制定一个取代可变事件的取代预算。
The recent findings indicate that rate of oxidation may be a more important variable than previously assumed . 最近获得的资料表明，氧化率可能是一个比以前想象的更为重要的可变因素。
Failure to take all such variables into account while planning a therapeutic maneuver may result in ineffective therapy or toxicity . 在制订治疗方案时不考虑这些可变因素就会造成治疗无效或中毒。
