Sentence examples for measurement is difficult from inspiring English sources

Most of the knowledge of the detailed structure of the interface between a metal and an electrolyte arises from experimentation with mercury, the only metal that is liquid at ordinary temperatures; the double layer structure turns out to have surface tensions that must be measured, and this measurement is difficult with solid metals.

Measurement is difficult, and results often disagree.

Mr Davies, the co-founder of New Philanthropy Capital, concedes that measurement is difficult, but insists it is not impossible: "Some of these things from an economic point of view are unmeasurable, but no more so than measuring GDP in the service sector, which we do, though it is very hard".The second requirement is greater transparency.

However, measurement is difficult in some scenarios.

In the process of using the sintering technique of rotary kiln to produce alumina, the shape of kiln crust is complex and the temperature measurement is difficult.

Although the stacking fault energy (SFE) is a fundamental variable determining the minimum grain size (dmin) obtainable in severe plastic deformation (SPD) processes, its accurate measurement is difficult.

However, radiological measurement was difficult to apply in our study.

In haemodialysis (HD) with much lower blood flow rates (up to 0.6 L/min), microbubbles have also been a concern, but proper measurement was difficult.

Such exclusion was operated because the proposed approaches - such as oscillometry impedance measurement or upper airway resistance measurement – are difficult to apply in every setting and are not easily reproducible in different contexts.

In traditional error-state based inertial navigation system (e.g., Rogers 2003; Bekir 2007), the variance component estimation for the IMU measurements is difficult because the error measurement vector blends the errors from an inertial sensor and other aiding sensors.

Evidence supporting earlier detection of progression with optic disc and RNFL measurements is difficult to obtain.