But Hartley 2's nucleus is definitely the smallest one so far, its long axis spanning only about 2 kilometers (1.2 miles).
不过哈雷2号的核心毫无疑问是目前见过的最小的了，它的长轴直径仅约2千米(1.2英里)。
It measures 7 miles long by 2 miles at its widest point and has a narrow mouth (roughly 1,600 feet wide) that makes navigation difficult during high tides.
它有7英里长，最宽处2英里，有个狭窄出口(宽约1,600英尺)使满潮时很难航行。
It measures 7 miles long by 2 miles at its widest point and has a narrow mouth (roughly 1, 600 feet wide) that makes navigation difficult during high tides.
它有7英里长，最宽处2英里，有个狭窄出口(宽约1,600英尺)使满潮时很难航行。
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