Definition of pre-tension in English:

pre-tension

verb priːˈtɛnʃ(ə)n

[with object]

1Apply tension to (an object) before manufacture or use.
the safety system pre-tensions the seat belts
Example sentencesExamples
- If the sensor net determined that a collision was imminent, the system could brake the vehicle, pre-charge the airbags, pre-tension the seatbelts, and plot a path to impact that would result in the least likelihood of injury or death.
- The passenger bag was an option, but standard also was side impact protection, pre-tensioning seatbelts, and anti-dive front seats.
- Using the car's many electronic sensors, Pre-Safe can anticipate an accident and pre-tension seatbelts, close windows and move seats into the optimum position before the worst happens.
- The Musso also has ABS brakes, traction control, driver's side airbag, pre-tensioned safety belts and side impact protection bars.
- Mercedes has a similar system on the S-Class called ‘Pre-Safe’ that pre-tensions the seatbelts, adjusts the seats to their optimal crash position if necessary, and closes the sunroof should the vehicle skid.
1. 1.1 Strengthen (reinforced concrete) by applying tension to the reinforcing rods before the concrete has set.
  Example sentencesExamples
  Dowel bars are similar steel bars installed across joints to provide resistance to shear, but are not pre-tensioned.
  Pretension stiffens cables against deflection, and fabric or foil, also pre-tensioned, can be used between the cables to create very large spans.
  Sensors will detect out-of-position occupants and smart belts will pre-tension to position your body correctly so the airbag can intercept you properly.
  Effectively an evolution of the familiar DSC traction control system, DSC + offers a range of benefits, including brake standby that pre-tensions the brakes when the driver quickly removes the pressure from the accelerator pedal.
  Concrete can be prestressed in a factory by tensioning the steel reinforcement first and then placing concrete around it - ‘pre-tensioned’ reinforcement.

Derivatives

pre-tensioner

noun

The cars come with a good deal of kit: standard electronic stability, anti-lock brakes and electronic brake force distribution, disc brakes all round, four airbags and belt pre-tensioners.
Example sentencesExamples
- Worries about safety are met by a body shell which meets all European and American collision standards, driver and passenger front and side airbags, seat belt pre-tensioners and twin roll bars.
- On the safety front, the Bora is among the leaders in its class: front and side airbags, seat belt pre-tensioners and high-impact side protection bars.
- Other safety features include two front airbags, seat belt pre-tensioners and a safety inertia switch, which is designed to cut off the fuel supply in the event of a collision.
- Safety package includes side curtain airbags as well as energy-absorbent front seat back, with anti-whiplash mechanism, as well as front and rear seat belt pre-tensioners.

单词	pre-tension
释义	Definition of pre-tension in English: pre-tension verb priːˈtɛnʃ(ə)n [with object] 1Apply tension to (an object) before manufacture or use. the safety system pre-tensions the seat belts Example sentencesExamples If the sensor net determined that a collision was imminent, the system could brake the vehicle, pre-charge the airbags, pre-tension the seatbelts, and plot a path to impact that would result in the least likelihood of injury or death. The passenger bag was an option, but standard also was side impact protection, pre-tensioning seatbelts, and anti-dive front seats. Using the car's many electronic sensors, Pre-Safe can anticipate an accident and pre-tension seatbelts, close windows and move seats into the optimum position before the worst happens. The Musso also has ABS brakes, traction control, driver's side airbag, pre-tensioned safety belts and side impact protection bars. Mercedes has a similar system on the S-Class called ‘Pre-Safe’ that pre-tensions the seatbelts, adjusts the seats to their optimal crash position if necessary, and closes the sunroof should the vehicle skid. 1.1 Strengthen (reinforced concrete) by applying tension to the reinforcing rods before the concrete has set. Example sentencesExamples Dowel bars are similar steel bars installed across joints to provide resistance to shear, but are not pre-tensioned. Pretension stiffens cables against deflection, and fabric or foil, also pre-tensioned, can be used between the cables to create very large spans. Sensors will detect out-of-position occupants and smart belts will pre-tension to position your body correctly so the airbag can intercept you properly. Effectively an evolution of the familiar DSC traction control system, DSC + offers a range of benefits, including brake standby that pre-tensions the brakes when the driver quickly removes the pressure from the accelerator pedal. Concrete can be prestressed in a factory by tensioning the steel reinforcement first and then placing concrete around it - ‘pre-tensioned’ reinforcement. Derivatives pre-tensioner noun The cars come with a good deal of kit: standard electronic stability, anti-lock brakes and electronic brake force distribution, disc brakes all round, four airbags and belt pre-tensioners. Example sentencesExamples Worries about safety are met by a body shell which meets all European and American collision standards, driver and passenger front and side airbags, seat belt pre-tensioners and twin roll bars. On the safety front, the Bora is among the leaders in its class: front and side airbags, seat belt pre-tensioners and high-impact side protection bars. Other safety features include two front airbags, seat belt pre-tensioners and a safety inertia switch, which is designed to cut off the fuel supply in the event of a collision. Safety package includes side curtain airbags as well as energy-absorbent front seat back, with anti-whiplash mechanism, as well as front and rear seat belt pre-tensioners.
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