Conclusion It is an effective method for adjusting the strength, direction, range and frequency of laser to prevent bleeding, perforation and long term urethral stricture.

结论根据患者特点调控激光强度、照射方向、范围、次数是防止出血、穿孔和远期狭窄的有效手段。

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Confinement of concrete results in a modification of the effective stress-strain relationship: higher strength and higher critical strains are achieved.

混凝土约束改变了有效应力-应变关系：造成强度和临界应变的增加。

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The addition of mineral admixtures is one of the effective approaches, which can improve fracture brittleness of high compressive strength concrete.

通过试验得出复掺矿物掺合料是改善混凝土断裂脆性的有效途径之一。

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The participants collectively represent millions of Americans who support the Bush policy of promoting international peace through the effective marshalling and use of American strength -- and who appreciate that John Bolton is one of the President's most effective advocates for, and implementers of, that policy.

CENTERFORSECURITYPOLICY: Press conference shows strong U.N.-Bolton support

This is the case for a simple reason: Effective strength is more than a physical attribute.

CENTERFORSECURITYPOLICY: The anti-strength candidate

"He should be remembered as one of the most effective legislators in the history of the US Senate, a symbol of the strength and independence of the US legislature, " said the party's leader David Cameron.

BBC: Brown pays tribute to Ted Kennedy