... 必有 o x 0 x x 例4 证明: 当 返回 上页 下页 目录 24/51 （2）单侧极限(One-sided Limits) 左极限 (Left Limits) : ) ( 0 x f A x f x x ) ( lim 0 , 0 , 0 当 ) , ( 0 0 x x x 时, 有 .
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?左方极限
... 左扣活动扳手：left-handed monkey wrench 左方极限：left limit 左端：first member ...
Ministers lifted the limit on university-tuition fees-but failed to foresee the race to the top of the new scale; that has left the exchequer, which underwrites the fees, with a big liability.
首相提高了大学学费的限制，但未能预见所带来的一路飙升。这使得同意此的财政大臣负有重大责任。
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The left side of the spectrum in Figure 1 suggests that you can anticipate all the hundreds and thousands of concerns that pop up when you develop software and tries to limit your responses to them.