If a remote host or database a test is trying to connect to is down or slow, you can bypass that test so as not to hold up all the other tests.
在一个测试试图连接到的远程主机或数据库宕机或变慢时，您可以忽略该测试，以便不阻塞所有其他的测试。
2
The assembly shall consist of two positive seating check valves located between two resilient seated shutoffs with a hydraulically balanced bypass line and four test cocks .
Items of the tests are following: control test with the bypass valve, control test with the major feedwater valve and change-over test between bypass valve and major feedwater valve.