1.
The knocker is oblong in shape, and of the kind our ancestors called "jaquemart".
铁锤是长方形的，象古时的钟锤。
2.
"The first watches appeared shortly after 1500, when the mainspring was invented as a replacement for weights in driving clocks."
在1500年初用发条代替钟锤来驱动时钟发明后不久,就出现了第一批表。
3.
A part of an apparatus that strikes a gong or bell, as in a clock.
锣锤，小锤敲锣或打钟的机械中的一部分，如用于钟表中的
4.
Pendulum clocks showed the hours more exactly than earlier clocks, since the weight on the pendulum could be moved up or down to make the clock to go faster or slower.
摆钟比早期的钟记时准，因为摆上的重锤可以上下移动调整钟的快慢。
5.
Little Luke carried on for ten minutes after he hit his thumb with the hammer.
小卢克用锤子痛击自己的大拇指后，又哭又闹达10分钟。
6.
A usually saucer-shaped bell that is struck with a mechanically operated hammer.
铃一种形如盘碟的钟，通常由某种机械装置操纵的小锤击响
7.
If the pendulum is made of invar, the bob does not rise or fall much. So the clock keeps good time in summer and winter.
如果用不胀钢做钟摆，摆锤升降的距离就很小，这样无论夏季或冬季，钟都走得很准。
8.
round-edged set hammer
圆边击平锤[陷型锤]
9.
hammer for hammer mills for skins or leather
生皮或皮革锤磨机用锤
10.
Please beat out this metal with a hammer
请用铁锤把这金属锤平。
11.
air-lift gravity drop hammer
蒸汽重力落锤;单作用空气锤;空气重力落锤
12.
To hammer, bend, or shape with a peen.
锤打锤击、使弯曲或用锤顶来打成一定形状
13.
A heavy metal body, especially the head of a power hammer.
锤头一种重的金属体，特指汽锤或打桩机的锤头
14.
hand hammer of base metal (excl. power-operated and surgical and medical hammers)
手锤,贱金属制（不包括电动锤和外科和内科用锤）
15.
Great! Pass me the hammer.
很好！把钉锤给我。
16.
"Hook, Line & Sinker"
"汽笛,电线与铅锤"
17.
A good anvildoes not fear the hammer.
[谚]好砧不怕锤打。
18.
hammer smith
锻工, 锤工, 铁匠