G1 compacts sufficiently to completely avoid the use of fine-grain free lists for allocation, which considerably simplifies parts of the collector and mostly eliminates potential fragmentation issues.
G1通过有效的压缩完全避免了对细微空闲内存空间的分配，这不仅大大简化了收集器，而且还消除了潜在的碎片问题。
Figure 4-16 shows a Model 6485 Picoammeter measuring the current from the ion collector, which is operating at ground potential.
图4 - 16示出6485型皮安计从离子收集电极测量电流的情况，这时仪器工作在地电位。
If the source of ions is biased off ground, then the ion collector will most likely be at ground potential.
如果离子源偏离地电位，那么离子收集电极多半处在地电位。
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