"complex competition" is a correct and usable phrase in written English.
You can use it to describe a challenging situation. For example, "Winning the award required navigating a complex competition among hundreds of qualified candidates."
While exports are vital to Russia's military complex, competition is stiff.
"This case raises significant and complex competition issues relating to the supply of prescription drugs to the NHS," said Simon Williams, senior director for goods at the OFT.
The stabilization of lifted flames involves a complex competition between small-scale mixing and propagation of flame kernels at the base of the flame.
The crystal morphologies are determined by a complex competition between the heat transport (far-field flux) and the strength of surface tension anisotropy.
The former properties play a pivotal role in overcoming complex competition and can be partially explained by the ability to produce antibiotics and other bioactive compounds that confer an ecological advantage and allow PGPS to colonize niches.
The model predicts that, for length scales below 30 nm, a single sphere exhibits an over-energetic term while spheres arranged in a close-packed manner highlight a complex competition between the porosity and the intrinsic low-radius effect.
A self-adaptive inertia and competition mechanism was developed within the CA model to process the complex competitions and interactions between the different land use types.
In addition, the significant interaction between species complex and competition factors (see Table 8) suggested that body size shift in the presence of competition affects mainly the crested larks, thus supporting the character displacement hypothesis.
It will be useful to evaluate parasitoid combined suppression, and to characterize complex interspecific competition between these two species of parasitoids.
Furthermore, the industry is exposed to changes in the value chain over time: Customers and society have become more aware of sustainability issues, e.g. protecting the natural environment and healthy nutrition; certain resources have become scarce; industry regulations have become complex; global competition has risen and the market is as volatile as any other industry.
The cytokine milieu in vivo is complex, with competition between the different γ- chain dependent cytokines determining survival or death.
