1.
Levers and pulleys are simple machines.
杠杆和滑轮是简单机械。
2.
The pulley is considered one of the five simple machines.
滑轮被认为是五种简单机械之一。
3.
Lever:Simple machine used to amplify physical force.
杠杆:用来增大力量的简单机械。
4.
a simple machine that gives a mechanical advantage when given a fulcrum.
给一个支点能够省力的简单机械。
5.
Complicated as a modern machine is, it is essentially a combination of simple machines .
现代机器虽复杂，但实质上不过是简单机械的组合。
6.
Complicated as modern machine is, it is essentially a combination of simple machines.
现代化机器虽复杂，但实质上不过是许多简单机械的组合。
7.
a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope.
有凹槽使得作用在绳子上的力量能够改变方向的轮状简单机械。
8.
a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole.
具有螺旋形线状汽缸棒的啮合相似的螺纹孔的斜面型简单机械。
9.
a simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal.
提升物体的简单机械；具有与水平面成锐角的平面。
10.
a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines).
带有轮幅的圆形结构能够在轴上旋转的简单机械。
11.
"The five simple machines are the lever, the wedge, the wheel and axle, the pulley, and the screw; all complex machines are combinations of these Basic devices."
五种简单机械是杠杆、楔、轮轴、滑轮和螺纹件,所有复杂机械都是由这些基本装置组成。
12.
Mechanical motion is one of simple and basic motion.
机械运动是一种简单而基本的运动。
13.
tin jet machined beyond simple trimming or descaling
锡喷管,机械加工不限于简单修整或清理
14.
Simple decision model of construction machinery for overhaul and remanufacturing
工程机械大修与再制造的简单决策模型
15.
"The great variety of farming devices covers a wide range of complexity, from simple hand-held implements used since prehistoric times to the complex harvesters of modern mechanized agriculture."
农业机械范围很广︰从史前使用的简单手工农具到现代机械化农业中所使用的复杂联合收获机。
16.
In simplest terms, this is the energy of a moving object.
用最简单的术语来描述，机械能就是移动着的物体拥有的能量。
17.
Automation is beginning to release workers from the bondage of mindless, repetitive toil.
自动化正开始把工人从机械简单又刻板重复的苦役中解放出来。
18.
It not only reinforces the logic thinking, problem solving skill is also enhanced.
这个简单的机械启动组合是一个学习物理科学的启程碑。