名词解释题接地线（earthing conductor）
名词解释题
接地线（earthing conductor）
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相关考题：
() has written a note to the boy on a Christmas card. A、Santa# #his MomB、his DadC、the Conductor
Train conductor: Excuse me, mama. Ticket, please.Passenger: Sorry. I left it in the smoking section and I'll go fetch it.Train conductor: It's OK, lady._________ .A． Take your timeB． Take your seatC． You can go nowD． As you please
Conductor: Good morning, , please?Passenger: Here you are.A． can I have your ticketB． anything to declareC． can I help youD． anything special
()is the boy who feels that Christmas doesn't work out for him.A、BillyB、JohnC、the hero boyD、the Conductor
I love traveling in the countryside, but I don't like losing my way. I went on a trip recently, but my trip took me longer than I expecteD."I'm going to Woodford Green," I said to the conductor as I got on the bus, "but I don't know where it is.""I'll tell you where to get off," answered the conductor.I sat in the front of the bus to get a good view of the countryside. After some time, the bus stoppeD.Looking around, I realized with a shock that I was the only passenger left on the bus."You'll have to get off here," the conductor saiD."This is as far as we go.""Is this Woodford Green?" I askeD."Oh, dear," said the conductor suddenly. "I forgot to put you off.""It doesn't matter," I saiD."I'll get off here.""We are going back now," said the conductor."Well, in that case, I would prefer to stay on the bus," I answereD.1. The conductor ________.：A.got angry when he found out the author was still on the busB.wanted to make a joke with the authorC.was rude to the author at firstD.forgot to tell the author where to get off the bus
What is the BEST conductor of electricity?A.Carbon dioxideB.Distilled waterC.Fresh waterD.Salt water
（）是指一建筑物接至接地装置的所有互相连接的金属装置，包括防雷装置。A、接地线earth conductorB、共用接地系统common earthing systemC、接地基准点earthing reference point，ERPD、等电位连接
（）是指一系统的等电位连接网络与共用接地系统之间唯一的那一连接点。A、接地线earth conductorB、共用接地系统common earthing systemC、接地基准点earthing reference point，ERPD、等电位连接
（）是指从引下线断接卡或换线处至接地体的连接导体；或从接地端于、等电位连接带至接地装置的连接导体。A、接地线earth conductorB、共用接地系统common earthing systemC、接地基准点earthing reference point，ERPD、等电位连接
（）是指将分开的设备各导电部分用等电位连接带、等电位连接导体或电涌保护器连接起来，以减少雷电流在他们之间产生的电位差。A、接地线earth conductorB、共用接地系统common earthing systemC、接地基准点earthing reference point，ERPD、等电位连接
单选题The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.AVHF communications are basically line of sightBthe air is more dense the higher you goCsalt water is a poor conductor of soundDsea water absorbs the radiated energy
单选题What is the BEST conductor of electricity（）.ACarbon dioxideBDistilled waterCFresh waterDSalt water
单选题Since fuse elements are made of zinc or any alloy of tin and lead, the melting point of the fuse element must be （）.Ahigher than that of copperBlower than that of copperCequal to that of copperDreached when the conductor it is protecting becomes white hot
单选题Copper is often used as an electrical conductor because it （）.Ahas high resistance at low temperaturesBhas a highly polished surfaceCis able to pass current with little oppositionDholds insulation together well
名词解释题联结线（bonding conductor）