英语听力：探索发现

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英语听力：探索发现科学新发现：我们的大气层-24

This is a genuine iron meteorite, this is believed to have once been part of the core of a long dead planet or asteroid, and this was found right here in this strewn field, this remarkable little shapes, indentations on the surface are called thumbpr

发表于:2018-12-03 / 阅读(120) / 评论(0)

探索与发现2014年

英语听力：探索发现 2012-12-30 冰河新新州 Ice Age Oasis—8

But how did one man and a spear produce the huge force behind this blow? The answer lies with small bits of ivory like this. They were once part of an atlatl, or spear thrower. An atlatl acts as a sort of catapult, magnifying the strength of a hunter

发表于:2018-12-03 / 阅读(135) / 评论(0)

探索与发现2012年

英语听力：探索发现 2012-12-26 冰河新新州 Ice Age Oasis—6

These holes are the unmistakable hallmark of a violent death. Their shape suggest they were made by the teeth of a big cat, but which one? Today theres only one large cat in the region, the Florida panther. Though similar to the cougar at the western

发表于:2018-12-03 / 阅读(122) / 评论(0)

探索与发现2012年

英语听力：探索发现 2012-12-28 冰河新新州 Ice Age Oasis—7

But most significant of all, the jaguar has a tell-tale trademark. Instead of going for the neck or snout like most cats do, it kills with a crushing bite through the skull into the brain. This makes the jaguar prime suspect in this case. Even the gl

发表于:2018-12-03 / 阅读(117) / 评论(0)

探索与发现2012年

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学英语单词

angle of half field-of view

antenna polar diagram

antroatticotomy

backward vision

Batey San José

between two fires

cco(current-controlled oscillator)

charging-platform

cock of the school

condensable routine

consumption of main foodstuffs per head

control dilemma

crystal video receiver

cumulative trauma disorder syndrome

cylindrocarpon hederae

diesel-powered impact hammer

distillation tray

equi-index plate

equipment footprint

Erasistratus Of Ceos

especial business

evaluation copies

extension of base line

feedgrain group

field-drain pipe

goddard range and rage rate (grarr)

hemocoelous viviparity

ingrown meander

ketone-benzol-dewaxing process

levkas (lefkada)

low freezing liquid

maximum breaker

Minnesota, State of

movements for revenge

National Meteorological Center

nuclear rotational level

Otopheidomenidae

peak-or-valley readout memory

performance-enhancing drug

picpointed coordinate

pooecetes gramineuss

rotating extractor

serial-in parallel-out multiplier

something between us

sulfur-containing

synthetic aviation fuel

Telegraph Creek

trammel methold

utriculoampullary nerve

volume water absorption

wood carviny by sand blast

woodwardia harlandii hook.'chieniopteris harlandii(hook.)ching