The phrase "trial first" is correct and can be used in written English.
It is typically used to describe a situation where something is being tested or tried out before moving on to the next step or stage. Example: "In our product development process, we always conduct a trial first to ensure that it meets quality standards before launching it in the market." Another example: "The new medication underwent a trial first, with a small group of patients, before being approved for widespread use."
Jackson went to trial first.
Prosecutors put him on trial first for the carjacking, winning a conviction in April 1985.
Federal and state officials have agreed to hold the state trial first.
Instead, they attempted to detect the difficulty of the trial first and then set their decision threshold accordingly.
To identify possible learning effects repeated measures ANOVAs with the factor trial (first vs. second) used in place of treatment.
But in this case, officials said, Police Commissioner Bernard B. Kerik decided to proceed with the disciplinary trial first.
In the spring of 1950, Ramadhin (and the equally inexperienced left-arm spinner, Alf Valentine from Jamaica), was picked in the West Indies squad after playing in only two trial first-class matches at home.
In the first stage of this planned two-stage trial, first-line chemo-naïve patients were enrolled, and in the second stage, patients who had received prior gemcitabine-based chemotherapy were included.
Similarly, Brodersen et al. (2008) presented 3 subjects with blocks of left and right targets with different stochastic properties: the targets were either presented with different fixed probabilities, or the probability of the target location was conditional on the target location in the previous trial (first-order Markov sequence).
The overall (considering all regions together) and regional within-trial (first right step versus second right step and first left step versus second left step) and between-trial (four steps from the first trial versus second trial versus third trial) repeatability of the WalkinSense was verified by the ICC.
You should be able to find travel / trial / first aid kit sized packs of most of the following: Keep these separate from bandages and tools, and clearly marked.
