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由水利水电科学研究院仪器工厂研制的ZT-76A型钻孔弹模仪(其中胶囊是与天津橡胶工业研究所共同研制),是对钻孔深部用静力法测量岩体变形特性的仪器。它能测岩体深部预先选定的方位两个正交直
ZT-76A bombshell model developed by the Instrument Factory of the Institute of Water Conservancy and Hydropower (in which the capsule was developed jointly with Tianjin Rubber Industry Research Institute) is an instrument for measuring the deformation characteristics of rock mass by deep-hole drilling. It can measure the depth of the rock preselected orientation two orthogonal straight