英语词汇derrick head怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	derrick head
释义	derrick head 简明释义吊杆端吊杆头网络释义 1 ?吊杆端 ... 吊杆灯 boom light 吊杆端 boom point; derrick band; derrick head 吊杆箍 derrick band; derrick hoop ... 2 ?吊杆端吊杆头 ... 吊杆端箍环 boom hoop 吊杆端吊杆头 derrick head 吊杆端滑车 head block ... 3 ?吊杆头吊杆头短语 1 derrick head cargo block 吊杆头起货滑车 ; 吊杆头起重滑车 ; 上吊货滑车 2 derrick head block 吊杆头滑车 3 derrick head span block 吊杆头跨绳滑车双语例句 1 The opening hatch cover method also not to be satisfied that using the warping head of cargo gear not through derrick boom open the hatch cover because using derrick boom is not safe. 开舱盖的方法不令人满意，起货设备传动轮弯头在开舱时不穿过吊杆，原因为使用吊杆不安全。
随便看	buy ... on credit buy on credit buy one get one free buy one get one free buy on margin buy on opening buy on scale buy on strength buy on tally buy on the installment plan buy on the instalment plan buy on tick buy on trust buy order buyorder buy or sell without authorization buyou buy ... out buyout buy-out buy out buy-out agreement buyout bid buyout bid buyout fund

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