The 6SN7 is a widely used electron tube (dual triode ...
Efron is the surname of the following persons ...
The planer is a tool for machining of wood The surface of the wood is ...
Kümbdchen, official spelling until December 6, 1935 It belongs to the...
Oak Grove Township is the name of several townships ...
The orthogonal group is the group of orthogonal matrices The group ope...
Trochetia parviflora is a rare flowering plant in the Its distribution...
The mouth of the River Rea in the Tame...