Two or three channels imprinted onto the plastic square contain either a normal cell growth medium or a chemical under study, such as growth factor.
印在塑料方块上的两、三条通道通常包含一个正常的细胞生长介质或者研究中的化学物质如生长因子。
Oil companies are drilling into rock layers where every square centimeter (0.16 square inch) is subject to pressure equivalent to the weight of a medium-sized car.
石油公司所开采的岩层上，每平方厘米所承受的压力相当于一辆中等大小的汽车。
The joint inversion problem of gravimetric and seismic data in layered medium can be converted into an optimization problem by introducing a weighted least square objective functional.
该方法通过引入加权最小平方目标泛函，将层状介质中的重力、地震资料联合反演问题转化成具体的优化问题。
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