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(197) / 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(189) / 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(191) / 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(174) / 评论(0)

探索与发现2012年

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学英语单词

alloasteropetes olivacea

anticlastogenic

basic aluminate

carotidocavernous

chinese language word segmentation specification

cold sterilization

colistin-dextronmycin-salbe

collective enterprise

communication subsystems

compression utility

contract for the supply of necessary goods

decision-problems

degeneracy in linear programming

disapperance of nasolabial sulcus

double wall knot

enarthromyces indicus

feeder preselection

fistula of salivary duct

goshiki (japan)

hachures of a relief feature

intermittent gear

inturning screws

least cost point

lever arm of stability

micro-crystalline structure

normal instruction

Oklahoma City bombing

p-Chlorobenzenesulfonate

paid-in capital increase

perlitic texture

plain end steel pipe

radial probability density

returned material

Rodzhersa, Bukhta

synthetic job argument

temporary withstand overvoltage

toll recording trunk

transcendentness

tuned plate tuned grid (tptg) circuit

tungsten inert gas welding machine

Unified Command Plan

vacuum control unit

vestibule (l. vestibulum)

wide address bus