All climbers are now safely back at base camp.

所有登山队员现在都安全回到了大本营。

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The major volcanic reservoirs are mainly in the effusive facies, and the best reservoir belts are in the gas cavity belts on top and at base of the effusive facies.

火山岩储层主要发育在溢流相，尤其是溢流相顶底部的气孔带是最为有利的储集相带。

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Achenes 8 - ribbed, white pilose; pappus scabrous, 10-12 mm long, connate at base.

瘦果纺锤形，具8条纵棱，被白色长柔毛；冠毛粗糙，长10 - 12毫米，基部联合。

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Veterans Day came a day after the president spoke at a memorial service at the Army base at Fort Hood,Texas.

VOA: special.2009.11.14

Even if we locate a source of some kind of genuine strength, authoritative strength, it's still usually possible, as it is for Satan, to argue that that power is really at base just the concealed product of custom or what we would think of as cultural construction.

有时即使我们找到了一种真实的，权威的力量，还是有可能像撒旦所辩解的那样，这种力量其实只是,约定俗成的规矩教条的隐秘产物,或者如我们所想来自文化建构。

耶鲁公开课 - 弥尔顿课程节选

But now at least you have a template that you can base cookies number 2 and 3 and 4 and 5.

但是最起码你有一个饼干人模板,可以据此制造出2号饼干人，3号，4号，5号等等。

哈佛公开课 - 计算机科学课程节选

Supervisors and experts back at base can also look and talk through the projector to oversee fault fixing.

BBC: IBM's robot sidekick aims to aid field engineers

Back at base in his kitchen, Ronny Styffe was building up a picture of where the wolf pack had moved overnight.

BBC: Sweden wolf cull divides wilderness opinion

Having suffered heatstroke the previous day Peter had been kept back at base, but he saw his injured friends brought in.

BBC: What is life like for Helmand blast survivors?