Objective: To study the solvent systems suitable for N-tert-butoxycarbonylation of non-natural amino acids.

前言： 目的：探讨非天然氨基酸N-叔丁氧羰基化反应的适宜溶剂系统。

youdao

Papineau rejects the contemporary orthodoxy that genuine thought hinges on some species of non-natural normativity.

骨髓炎拒绝当代正统，真正的思想是取决于某些物种的非天然的规范。

youdao

Human is non-natural nature substance or natural non-nature substance, in a word, human is the animal with culture.

人是一种非自然的自然物或者说自然的非自然物，一句话，人是文化的动物。

youdao

The company says its goal is to generate electricity from natural,non-edible, renewable and sustainable resources indigenous to West Africa with projects that focus on reducing the emission of greenhouse gases.

VOA: standard.2009.09.13

The list of natural disasters is long, but the list of non-natural disasters is probably longer.

FORBES: America's Most And Least Disaster-Ready Cities

Those considered to be strategic sectors are the energy sector in all its forms, non-renewable natural resources, transport, hydrocarbons, mining, bio-diversity, water and other sectors that the law may determine.

CENTERFORSECURITYPOLICY: Chavez��s repression continues

We should impose significant taxes on all uses of non-renewable natural resources, especially those in short supply.

ECONOMIST: Change of environment