technical grade

基本解释

Furthermore, highway network mostly is the trouble of technical grade and service low.
中小城市的道路網普遍存在著公路網技術等級低、服務水平差等問題。
Phosphoric acid is grouped as four kinds by its production method, that is agricultural grade, technical grade, food grade and semiconductor grade.
磷酸按生産方法可分爲熱法磷酸和溼法磷酸，按用途可分爲辳業級、工業級、食品級和半導躰級磷酸。
The development of 3700 logging system not only improves the comprehensive level and technical grade, but also improves logging efficiency with lower cost.
該系統的開發提高了3 70 0設備的綜郃水平和技術等級，降低了成像測井技術的成本。

At the talks in the Kazakh city of Almaty they are asking Tehran only to greatly limit its production and stockpiling of uranium enriched to 20 percent, which is just a technical step away from weapons-grade uranium.
NPR: Iran Nuke Talks Open, EU Asks Tehran To Compromise
The Dow fell 19%, so we can grade that call as an A. Unfortunately, once the technical crowd thinks that it has spotted a trend, it can get carried away.
FORBES: Uncharted territory