A、wide compression rings are used
B、oil rings are located above the piston
C、chromium plating is used on all piston rings
D、oil rings are located near the bottom of the piston skirt
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A、increase discharge pressure B、increase suction vacuum C、develop pulsation flow D、keep a steady rate of flow
A、Operate the wheel and stand by B、Keep a lookout and operate steering gear C、Enter telegraph orders in the bell book D、Operate the telegraph and enter telegraph orders in the bell book
A、operate the wheel and stand by B、keep a lookout and operate steering gear C、enter telegraph orders in the bell book D、operate the telegraph and enter telegraph orders in the bell book
A、a new bacteria colony should be put into the plant in advance B、the disinfection chemicals should be always used C、the air blower should be started and keep running in advance D、the nutrient for bacteria should put into plant in advance
A、textMessageEncoding and msmqTransport in this order. B、textMessageEncoding and msmqIntegrationTransport in this order. C、msmqTransport and textMessageEncoding in this order. D、msmqIntegrationTransport and textMessageEncoding in this order.
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