我的眼科医生推荐购买不含防腐剂的、供单次使用的小包装产品。
My ophthalmologist recommends products free of preservatives sold in single-use dispensers.
为保持较短的单次 GC 暂停时间，Metronome 在堆内使用了写屏障（write barrier）以及相关的亚结构（metastructure）来跟踪活动的和可能死亡了的对象。
To keep individual GC pauses short, Metronome uses write barriers within the heap and associated metastructures to track live and potentially dead objects.
用去离子水单次使用冲洗表面直到入口和出口的液体的电导率在容许范围内。
Rinse surfaces once through with DI water until conductivity of inlet and outlet fluids are within tolerances.
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