Sentence examples for required vacuum from inspiring English sources

We included consecutive eligible women with a singleton gestation of at least 37 weeks who required vacuum assisted delivery.

Women who reported severe vaginal bleeding, eclampsia, obstructed labor, retention of placenta, severe anemia or whose births required vacuum or forceps extraction, or cesarean section were not included with the rationale that such births alter not only careseeking behaviors (often necessitating referrals) but also entail a vastly different subjective sense of the birth experience.

Industrial oil flooded screw vacuum pumps have two major functions: pulling down and maintaining the required vacuum level.

The required vacuum frequencies were calculated using Equations 6 and 7 (see Methods) and the eigenfrequencies recorded in the unbounded fluid, i.e., far from the surface (Table 1).

The continuing trend toward high power (more than 1 megawatt at frequencies of 60 GHz and 100 kilowatts at frequencies of 200 GHz) requires vacuum electronic devices, which operate on a different principle from that of the conventional slow-wave electron tubes.

All these techniques require vacuum chambers and costly precursor materials.

The assembly does not require vacuum for operation.

These methods require vacuum chambers and are time- and cost-consuming.

The boiling point of heavier organosulfur compounds, such as alkylated dibenzothiophenes, are high (>340 °C) and it would require vacuum distillation.

The scanning probe microscopy setups are small, lightweight and do not require vacuum or high voltage supply.

Development of high-vacuum technology in many areas of science and engineering requires vacuum equipment to be simpler in service and to take less expense for manufacture.