block and tackle; pulley system
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesnoun
block and tackle; pulley system
neutralA mechanical device consisting of one or more fixed and movable pulleys, used to lift heavy objects with reduced effort. Key components are 定滑轮 (fixed pulley) and 动滑轮 (movable pulley).
Gōng工
rén人
men们
yòng用
huá滑
lún轮
zǔ组
bǎ把
zhòng重
xíng型
shè设
bèi备
diào吊
dào到
lóu楼
shàng上
。
The workers used a block and tackle to hoist the heavy equipment to the upper floor.
Zhè这
ge个
huá滑
lún轮
zǔ组
kě可
yǐ以
shěng省
yī一
bàn半
de的
lì力
。
This pulley system can reduce the required force by half.
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Zài在
wù物
lǐ理
kè课
shàng上
，
wǒ我
men们
xué学
xí习
le了
huá滑
lún轮
zǔ组
de的
yuán原
lǐ理
。
In physics class, we learned the principles of a block and tackle.
Gǔ古
dài代
jiàn建
zhù筑
zhōng中
kě可
néng能
shǐ使
yòng用
le了
jiǎn简
dān单
de的
huá滑
lún轮
zǔ组
。
Simple pulley systems might have been used in ancient construction.