1, tensile strength
Sentence making: at the same temperature, the tensile strength of deformed samples increases with the increase of deformation degree, and after the deformation degree reaches a certain value, the tensile strength no longer increases and has a downward trend;
Explanation: the resistance of materials to tension. It is expressed by the force acting on the unit cross-sectional area when the material is pulled down. Also known as tensile strength.
2. Labor intensity
Sentence: distributing pills containing multivitamins to the whole population may be useful to prevent some deficiencies, but it is very expensive and labor-intensive, and it is ineffective for all deficiencies.
Explanation: labor intensity. That is, the labor consumption per unit time. At the same time, the more labor consumed, the higher the labor intensity.
3. Stress
Sentence: state that matter moves not because they have similar desires, but because they collide with each other, push and pull, or because of the influence of pressure.
Explanation: Pressure per unit area.
4. Reinforced plastics
Sentence: Fiber reinforced plastics (FRP) is a promising material in modern civil engineering, and hybrid fiber reinforced plastics (HFRP) is the leading direction of FRP development in the future.
Explanation: Plastic with sheet or fibrous materials to enhance mechanical strength. Synthetic resin is dip-coated on sawdust, glass fiber and other materials and processed. It can be used to manufacture mechanical parts, vehicle and ship shells, etc. Such as glass fiber reinforced plastics, laminates and the like.
Step 5 increase
Sentence: However, when you switch from one operating system to another (perhaps because of the change of business direction, the enhancement of technology, or to save costs), it will be very difficult to complete the switch.
Explanation: enhancement; Strengthening: ~ constitution | ~ self-confidence.
6. Magnetic induction intensity
Sentence: A set of magnetic stimulation system is designed and manufactured, which can produce 2.5 Tesla magnetic induction intensity (figure-8 coil) and the highest working voltage is 2 kV.
Description: Vector physical quantity representing the magnitude and direction of magnetic force at each point in a magnetic field.
7. Magnetic field strength
Sentence: The system is mainly used for directional drilling on land and offshore platforms, which can accurately know the heading of the drill bit and measure the temperature and magnetic field intensity at the drill bit.
Explanation: In any magnetic medium, the ratio of the magnetic induction intensity at a point in the magnetic field to the magnetic permeability at that point.
8, compressive strength
Sentence making: widely used in mining, smelting, building materials, highways, railways, water conservancy, chemical industry and other industries. Crush all kinds of materials with compressive strength not exceeding 320 MPa.
Explanation: the resistance of materials to pressure. It is expressed by the pressure on the unit cross-sectional area when the material is crushed.
9. Strong face
Sentence: If automakers are forced to smile, the atmosphere outside the auto show is anger and dissatisfaction, which just echoes the gloomy road ahead of GM and Chrysler. The two automakers are trying their best to meet the conditions stipulated in the government rescue plan before March.
Explanation: force (laugh): ~ laugh.
10, strong base
Sentence: This product is a phosphorus-free laundry additive, which contains strong alkali. Under any water quality, it can cooperate with and promote other laundry detergents to exert efficient detergency and cleaning power, and at the same time reduce the dosage of laundry detergents.
Explanation: The alkali of strong alkali reaction is very corrosive, and a large number of hydroxyl ions, such as caustic soda and caustic potash, can be produced in aqueous solution.