slack bottom

基本解释

A semi-slack line keeps your weight in the same place on the bottom and helps maintain the natural appearance.
半松弛的钓线可以确保你的铅坠停留在原地，并且保持饵的自然状态。
My understanding was that if your bottom spokes go slack when just riding around your spoke tension is too low.
我的理解是，如果您的底部辐条去松弛时，只有在你的发言紧张骑太低。
blog.sina.com.cn
He capitalised on some slack defending from the home side before ruthlessly firing the ball left-footed through a defender's legs and into the bottom corner.
他把主队的防线搅合的七零八落，然后左脚射门穿过后卫的两腿之间打进底角。
forum.sports.sina.com.cn

As you might have gathered from the appearance, this one comes in at the bottom end of that range, but it really doesn't slack on the spec sheet -- it's still managing to pack AWS HSDPA, a 3 megapixel camera, WQVGA display, quadband EDGE for world travel, AGPS, and a full HTML browser.
ENGADGET: Samsung Highlight comes to T-Mobile, we play with it Mobile