According to the analysis of interaction way between the silicic fluid to form quartz vein and the enclosing rock in the passable structure or in the host structure, the emplacemental fashion of the silicic fluid is divided into the active and the passive emplacement.

Logic orientation initiative and passiveness of teaching and learning in PE teaching——On the root of instructional and main function in PE teaching;

Initiative and Passiveness-New Exploration of Linear City s Development in Eastern Region of Northwest China;

Effect of passive smoking amount on nucleated red blood cells in neonates;

Effects of passive smoking on bone mineral density and bone metabolism of rats;

Passive localization technology of time reversal with multi-sensor array;

Whether active voice or passive voice is used in the writing depends on the specific business circumstance and the communicative function required by the correspondence.

Generally the passive voice is used to denote a passive neaning.

Error analysis and revises of passive ranging;

Filtering applied research on noise passive ranging;

The passive ranging technology of moored depth charge;

The paper provides a principle analysis of the passive vibration isolator using zero dynamic stiffness,which demonstrates the vibration in the low frequency range is available based on the zero dynamic stiffness principle and the method of passive vibration isolation.