英语听力：探索发现

探索与发现2012年

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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(184) / 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(170) / 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(171) / 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(158) / 评论(0)

探索与发现2012年

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学英语单词

alcoholic determination

anthracene green

asphalt converter

be on one's way

car repair facilities

cascade voltage transformer

chronic apical abscess

common-law exchange

concealed light

cruising circle

crux australiss

CSE (core storage element)

directory manager

fish-pole antenna

gas offtake target

greasing of palms

helicopter load

husband-and-wife shop

hybrid composite materials

inspection of skin

interply adhesion

lechatelierites

lepocinclis cyclindrica minor

loaded potentiometer function generator

looply connected power supply

macro-coacervation

magna est veritas,et praevalebit

magnetic needle

microcomputer bus system

mineral separation

multilayer blow mo(u)lding

mus musculus musculus

Nakhodka, Zaliv

post cooling crack

preselector mechanism

primary petiole

public camp ground

radio guided bomb

remote supervisory control system

service level target

shunting resistor

Smilax hemsleyana

sodic chalybeate

stripper efficiency

Tamias striatus

the Stars and the Stripes

translation flow

tribunal of cassation

twin juxtaposition

ursus maritimuss

video-frequency amplifier

vitrified grinding stone

volar capitular ligament

y-connection (wye connection)