Yes: Influenza b virus is a respiratory virus spread by coughing, etc. The two main types of influenza occurring during flu season are influenza a and influenza b. Influenza b often causes more GI symptoms.
Excavators are vehicles that are used on construction sites to move material. 1  slide 1 of 2. Excavators: Also Known as Diggers and Backhoes An excavator uses hydraulics or a wire rope pulley system to dig holes or trenches and is, therefore, often called a digger. 2  slide 2 of 2. Examples of Excavators.
2) Plastic instruments: It has two ends; the first is used to. carry temporary filling material. The opposite end is used. as a plugger to condense cement and base materials in the. root canal. 3) Endodontic excavator: It is larger than a spoon. excavator, used to allow excavation of the contents of the. pulp chamber. It is also used in curettage of periapical. lesions in surgical endodontics (a picectomy). 4) Endodontic locking pliers (t weezer): It has a lock that.