向上行进的

Blond children scoot around on bicycles, elderly German couples take their evening constitutionals along the waterfront and teenagers who look surprisingly like California surfer dudes guide tourists through an utterly un-African extreme sports scene: sand boarding, sand sledding, sand skiing and sand sailing — none of which includes a dune lift, so all of which demand repeated uphill slogs through the sand and the inhalation of lungfuls of Namibian dust.

白肤金发的儿童在自行车兜圈，年长的德国夫妇沿着江边消磨自己晚上的时光，看起来像加利福尼亚的花花公子的青少年们在引导游人体验这种绝对的并非－非洲人的极限运动场景：沙滩木板、沙滩雪橇、沙滩滑雪术和沙滩航行术。所有的运动无不被沙丘弹到空中，所以所有的运动要求穿过沙土艰难的向上行进，两肺都将吸入大量的纳米比亚的尘土。

The wavefield is resolved into upgoing and downgoing components.

波场分解成向上行进和向下行进的分量。

The downgoing component represents reflections from the sea surface while the upgoing component represents reflections and refractions from subterranean strata.

向下行进分量代表从海表面的反射，而向上行进分量代表从地下的地层中的反射和折射。

This is because they were ordered to attack normally, so they fire where the Zone Raiders were as the shot was fired and not at the direction where they are moving.

这是因为她们收到的指令是普通攻击，所以她们向区域突袭兵曾经所在的地方射击，而不是在她们的行进方向上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。