A、flame arrestor
B、flame screen
C、detonation arrestor
D、detonation blocker
更多“A large metallic device，mounted directly in the piping (usually located at the dock near the point where the vapor hose is attached)，designed to prevent the passage of a rapidly moving flame through the piping is called a（）.”相关的问题
A、raw metallic products B、finished metallic products C、consumable products D、Manufactured goods of large Size
A、Conducts electricity B、Difficult to store C、Large volume necessary to be effective D、Ineffective in powdered metal fires
A、fragile or expensive cargoes B、raw materials C、finished metallic products D、manufactured goods of large size
A、使用fdisk/dev/sdb命令删除所有分区 B、ddif=/dev/zeroof=/dev/sdbbs=1048576count=1 C、rm/dev/sdb？-f D、umount/dev/sdb？
A、build up the piston crown by metal spraying B、build up the cylinder head by metal spraying C、insert shims between the crankpin bearing box and the connecting rod foot D、install a thinner head gasket
A、Dev - 1 is the DR because it has a lower OSPF router ID B、Dev - 3 is the DR because it has a higher OSPF router priority C、Both Dev - 1 and Dev - 3 are using the def ault OSPF router priority D、Dev - 3 is the DR because it has a lower OSPF router ID E、Dev - 1 is the DR because it has a higher OSPF router priority
A、tet1 -f /dev/rmt0 fsf 2; restore -xqvf /dev/rmt0 B、tet1 -f /dev/rmt0.1 fsf2; restore -Tvf /dev/rmt0.1 C、tet1 -f /dev/rmt0.1 fsf3; restore Tqvf /dev/rmt0.1 D、tet1 -f /dev/rmt0.1 fsf3; restore -Tvf /dev/rmt0.1
A、ff overheat is found, the engine must be stopped for inspection B、Much heat of the crankcase door indicates that the bearing is overheated C、If bearing clearance is too large, knocking will be heard in the crankcase D、If bearing clearance is too large or too small, the white metal may be melted
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