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Vẽ sơ đồ và trình bày quá trình tổng hợp một acid béo no có số cacbon chẵn ,lẽ .Trong quá trình chế biến thực phẩm,tác nhân ảnh hưởng đến hàm lượng và chất lượng lipid.
1
T
Wheel & Axle
1
The axle goes through the center of the wheel.
Inclined Plane (Ramp)
2
The wheel rotates
around an axle.
It is a flat surface with one side higher than the other.
1
3
It makes moving
objects easier.
It assists in pushing something up to a higher location or
pushing something down to a lower location.
2
3
A force is needed to push or pull the object up or down the ramp.
Pulley
1
It consists of
a grooved wheel
and rope.
The rope slips through the wheel groove and attaches to an object.
2
Your name
Wedge
3
The object lifts when
the rope is pulled.
Used to push apart
or cut an object.
Screw
1
Holds objects together.
1
2
Place the tip of the wedge into a crack or onto the surface of an object to break in two.
Lever
2
It is shaped like a wedge, but is cylindrical
and has grooves (called threads) around it.
1
With a fixed point at the center called the fulcrum, a board or
bar is placed on top.
The threads of the screw advance the
screw through a surface.
3
2
Pushing down on one side
makes the other side go up.