採煤機機頭 的英文怎麼說
中文拼音 [cǎiméijījītóu]
採煤機機頭
英文
shearer gearhead-
The machine can adopt positive and negative circulation and other deep drilling technique, adapts to various stratum, is the first selected equipment for foundation construction of river ' s bridge and dock, and also adapts to large diameter borehole construction such as tall building, coal mine vertical well and sewage well, it exerts great action many changjiang river large scale bridges foundation construction
該機可採用正反循環等鉆進工藝施工，適合於各種地層，是江河橋梁、碼頭基礎施工的首選設備，也適用於高層建築、煤礦豎井和污水井等大口徑鉆孔施工，在多座長江大型橋梁基礎施工中發揮了巨大作用。The concentration of mathane monitor controlled by chip microprocessors, is able to sound the alarm bell based on the limit of mathane concentration, and start device to drain the gas at the same time
本文設計的用單片微機控制的甲烷濃度報警監控儀，是採用熱催化原理（俗稱黑白元件）探頭製成的甲烷濃度測量儀，適用於中小型煤礦井下各作業場所中測量空氣中的甲烷濃度。
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