The present invention relates to a tarpaulin using resin composition for press-coating and a preparation method thereof. The reception unit receives a reflection wave from a target. The system also has a work tool movement sensor adapted to produce a signal indicative of a movement of the work tool. The video data may be processed by altering a frame rate, PCRs, pixel resolution, color resolution, color content, andor region of interest content of the incoming video data to produce the output video stream. The apparatus includes a base structure having an opening for a well head, a floor structure coupled to the base structure by a plurality of support members, and a drive mechanism disposed on the floor structure, the drive mechanism providing motive force to the support members for moving the floor structure relative to the base structure in a single first direction. When the moderator later initiates the conference call, the present invention will access the profile of each invitee that accepted the invitation, and then call the invitees at the respective contact numbers set forth therein.