Typically, the gas is injected a few seconds before detonation and the amount used can be preset.

Diesel fuel is injected just before the power stroke.

When it's injected thirty minutes before the toxification, the survival time will be prolonged.

With zinc or copper attached, the new antibody could be injected into a person even before exposure.

In a stratified charge engine, the fuel is injected into the cylinder just before ignition.

A local anesthetic is injected into the skin before the surgery.

Injected into the spinal column before surgery, aspirin prevents hyperalgesia.

Exenatide is usually injected twice a day, before the morning and evening meal.

The new advance was an old drug, vasopressin, injected before a shot of the standard therapy, adrenaline.