183.economy. n经济、节约;
184.scale. n 天平，等级;
185.frontier. n边疆/境;
186.environment. n环境;
187.combination. n结合;
188.substance. n物质;
189.installation. n安装;
190.damage. n损/伤害;
191. .injury. c.伤害;
192.highway. n公路;
193.code. n.代码、标准;
194.foundation. n.基础;
195.rubber. n.橡胶;
196.impact. n.影响;
197.vibration. n.震动;
198.concrete. n.混凝土;
199.support. n/v支持;
200.organism. n.有机体;
201.function. n作用;
202.counterbalance.n/v平衡;
203.fever. n/v.发烧;
204.insect. n.昆虫;
205.infrared. n/a红外线;
206. satellite. C人造卫星;
207.physicist. n.物理学家;
208.stress. n.压力;
209.spraying.n.喷雾;
210.pest. n害虫;