The overall industry has not, to date, standardized on any particular test apparatus design for any of the three type tests . 到现在为止，整个催化剂工业关于这三种测试装置都还没有标准化。
Mechanical test results must be evaluated in conjunction with catalyst activity, selectivity, and stability data . 必须将机械测试结果和催化剂活性、选择性和稳定性数据联系起来进行综合评价。
In the final analysis they are based on the opinions of research test pilots, substantiated by careful instrumentation . 归根结蒂，这些是根据研究试飞员的意见提出来的，而由精细的测试设备来加以验证。
For photographic measurement purposes, a strip of material having a transparency which varies in steps along its length is often used . 在摄影测量中，经常用到一种测试条，它的透明度沿长度方向逐级变化。
For this reason, considerable testing is done on such devices as centrifuges to determine linearity of sensitivity to acceleration . 为此，大量的测试要在离心机装置上进行，以确定对加速度灵敏度的线性度。
Polished wafers are subjected to a number of measurements that are concerned with cosmetic, crystal perfection, mechanical, and electrical attributes . 抛光好的片子还要进行许多测试，如外观，晶体完整性，以及力学和电学性质。
An important consideration in determining a suitable mechanical test for catalysts is the actual dynamics of the catalyst during operation . 在用适当的机械测试方法测定催化剂时，一个重要的考虑是催化剂在操作期间的实际动态特性。
It would be highly desirable of these tests could be carried out under conditions that reproduce the actual operating conditions and catalyst environment . 假如这些测试能够在仿照真实操作条件和催化剂环境下进行，那就是非常理想的。
It is to be expected that test equipment will require more and more refinements as engineering developments result in sensors of higher and higher quality . 可以预料，随着科技的发展，传感器的质量将愈来愈高，对测试设备精确度的要求也将愈来愈高。
Test methods for bulk density of fine ceramic powder 细陶瓷粉末的体密度测试方法
