Sentence examples for quantity is difficult from inspiring English sources

First, the synthesis of long CNTs with uniform length in a large quantity is difficult.

Yet, this quantity is difficult to measure accurately, and depends on the details of both surface and interior structure.

But this quantity is difficult to measure due to its very small value where the solar equator-to-pole radius difference is less than 10 milli-arcsecond (mas).

Due to the fragile nature of peroxisomes, the isolation of intact peroxisomes in high purity and sufficient quantity is difficult.

Measuring quality is difficult; measuring quantity is as easy as counting.

To overcome the difficulty of a lack of accurate data on the convective heat transfer coefficient at high temperatures, a "semi-inverse method" was developed, which explores a new method for estimating a physical quantity that is difficult to measure using physical quantities, which are relatively easy to measure.

This quantity is intrinsically difficult to measure, and to our knowledge it has not been estimated before.

The coverage of an SIA, defined as the proportion of the target population successfully vaccinated by the end of the campaign, is an important quantity to know but is difficult to directly estimate.

Thus, manufacturing antennas in large quantities for experimental reasons is difficult and even impractical.

The intermediate CDP-choline was produced in minute quantity which was difficult to measure experimentally [ 28, 53].

The adverse effects of chronic hyperglycemia related to osteoblast function, osteoclast activity, and formation of advanced glycosylated end products that may impact bone quality as well as bone quantity (18) are difficult to measure in a systematic fashion.