The test results with the needle-plane electrode system under ac voltage at 77 K indicate that the fatigue break in UHMW-PE under mechanical forces during the electrical treeing is a critical factor.

结果表明，机械应力下疲劳强度的劣化是低温电树枝化的重要因素。超高分子量聚乙烯具有低温性能好。

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Ms. Kiely got her first major break in 1997, when she worked with U.K. department store Debenhams to develop an exclusive collection for the store.

WSJ: The Pluck of the Irish | Designer Orla Kiely's Global Ambition

Here's a surprise: If you've inherited a 401(k), you can use the new deferral break for any funds still left in the account after Jan. 1.

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