The generally up and down movement of a reaction mass is converted into rotary motion which is used to drive a rotary hydraulic spring comprised of a rotary hydraulic pump motor and an accumulator to produce a \u201cspring\u201d function. The mass ratio of the components in the formulas : is between 20:1 and 1:20. In the event the metadata object is not stored in the metadata cache, a request to obtain the metadata object is sent to a source with which the metadata object is associated in a format associated with the source. The network controlling unit transmits data fed from a service providing server to the access terminal by making the data be matched to the type of the access terminal and access unit according to subscriber profile information being stored by the subscriber profile storing unit. The sample solution treating instrument includes, for example, a catalyst or an adsorbent which can remove any interfering substance in order to adjust the sample solution for measurement with a biosensor.