inlet timeinlet transitioninlierinner flowinner loopinner orientationinner ring roadinner studinorganic materialinputinridescenceinscriptioninsertinside bending radiusinside lightinginside threadinside wallinsolationinsoluble precipitateinsoluble residueinspectioninspection chamberinspection galleryinspection holeinspection pitinspection shaftinspection wellinspectorinstabilityinstallinstallationinstallation costinstallation of detectorinstallation of signinstallation of signalinstantaneousinstantaneous axis of rotationinstantaneous centerinstantaneous center of rotationinstantaneous center of zero accelerationinstantaneous center of zero velocityinstantaneous deflectioninstantaneous deformationinstantaneous elastic deformationinstantaneous straininstantaneous surface of wave profileinstantaneous unit hydrographinstantaneous valueinstrumentinstrument board