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(79) / 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(89) / 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(73) / 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(74) / 评论(0)

探索与发现2012年

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学英语单词

air conditioning plant

aspect photocell

bearing modulus

boatswain birds

capitals of uruguay

carry over of foreign tax

coherent scattering

control, process

diribonucleotides

Duchesnea indica Fock.

duty assessment

flat-type aluminium

flexor retinaculum

hydraulic barker

hydroscopic movement

Indo-Portuguese furniture

inspection of center line of berth

internal distance

intersection line

isoconfigurational

masquerade costume

maximal integral manifold

Montmartre, Butte de

oblique photogrammetry

optical isolator

oxygen overpressure indicator

perpendicular cut

photoelectric power converter

photohyalography

pinicortannic acid

pooling equilibrium

Primula strumosa

Rockwell superficial hardness

roll-a-car hydraulic jack

single-crystals

sisnstsesrsfsesrsosns-s

subtractive colour

symmetrical forging

tenaphalara acutipennis

thyreoglandular adenoma

tool point width

underconsumption of capital

virtual register

wrangelia argus