A standard set of balls for the snooker table consists of 15 reds, 6 colours and 1 white / cue ball. Historically, snooker balls were made exclusively from heavy ivory. Thankfully, these quickly became a thing of the past and were replaced before the Second World War by lighter Crystallite balls made from the crushed shin bones of cows. Today, snooker balls are entirely made from synthetic materials.
一套标准的斯诺克台球用球由15只红色球、6只彩色球和一只白/主球组成。历史上,斯诺克用球只能用沉重的象牙来制造。谢天谢地,这很快就成为了历史,在第二次世界大战之前,更为轻便的微晶球取而代之,它们由碾碎的母牛胫骨制成。而如今,斯诺克用球全部是用合成材料来制造。
Iraqi PM rebukes 2 Sunni Arab states
Visa waiver boosts Beijing visits
Libyan PM ousted after oil tanker escapes port
Guizhou aims to become big data hub
Shanghai gets first Sino-US high school
Shanghai to launch mediation system for medical disputes
US landslide death toll doubles
Xi pledges to bolster nuclear security
Zhongshan suits make comeback
Shanghai looks set for mini baby boom
Crimea to vote on joining Russia
China talent top worry for US firms
Japan marks 3 years since disaster
PBOC to regulate online finance
Prosperity poised to blossom
Nokia calls on Android O/S in reversal of fortune bid
Jet search still 'remains priority'
Yanukovych allegedly sighted in Moscow
Deadly camel virus may jump to human beings, study shows
Wuhan school puts distance between students and myopia
Family members start committee to deliver demands
Gaokao gets accepted by overseas universities
Hunts for fugitives to intensify
Parade proceeds amid tension over gay rights
Xi slated to sign flurry of deals in Europe
Beijing calls for dialogue on Ukraine
Guns in America more deadly than smog
Smog in Beijing expected to stick around
Palace Museum weighs ticket fix
Beijing-area air better than before
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |