你可能感兴趣的试题
steel guides steel shells steel bearing caps pig iron
Hard alloy steel construction Beveled edges on the valve head Low alloy steel construction Poppet type design
A.has composed had composed composes composed
will increase the state wealth. will threaten trade monopoly. will raise their competitiveness. will ultimately hurt consumers.
Lower efficiency. Lack of protection. Corporate structures. Lobbyist addiction.
large black steel black large steel steel large black large steel black
the stem and heads are made of different material low-alloy steel is used throughout a replaceable valve disk is welded to the head the self-centering action comes from motion of the valve stem in the guide
the sacrifice from U.S. consumers. the government’s financial support. the reduction of steel product prices. the compromise from the labor force.
the sacrifice from U. S. consumers. the government’s financial support. the reduction of steel product prices. the compromise from the labor force.
Lower efficiency. Lack of protection. Corporate structures. Lobbyist addiction.
lead forged steel alloy steel aluminum alloy
copper and antimony steel and babbitt aluminum or beryllium alloy zinc or an alloy of tin and lead
must guard against foreigners selling their steel at shocking prices. had difficulty in sustaining development in face of foreign competitors. can benefit enormously from the lower prices of steel in world markets. took advantage of the government’s protection to enhance efficiency.
must guard against foreigners selling their steel at shocking prices. had difficulty in sustaining development in face of foreign competitors. can benefit enormously from the lower prices of steel in world markets. took advantage of the government’s protection to enhance efficiency.
cast iron forged steel stainless steel aluminum alloy
flat surface mirror finish sloping surface inclined surface
the sacrifice from U.S. consumers. the government’s financial support. the reduction of steel product prices. the compromise from the labor force.
as much steel twice as twice much steel twice steel as much twice as much steel
湘公网安备 43130202000226号