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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Toth said silver has been sitting in a range without much direction, which makes it difficult to gauge where it might go.

FORBES: Gold Seen Rising Next Week

These systems use camera images or near-range radar to determine the direction and position of the vehicle in relation to lane markings.

ECONOMIST: Motoring

Argiolas is a top Sardinian winery producing a wide range of wines under the direction of renowned oenologist Giacomo Tachis of Marchese Piero Antinori.

WSJ: Vermentino, the Wine of Yachts and Beaches | Lettie Teague on Wine