客舱空气污染是一个重要问题。 A: Contamination of cabin air can be an important problem. B: Contamination of cabin air can be a considerable problem. C: Contamination of cabin air can be a fundamental problem. D: Contamination of cabin air has priority.
客舱空气污染是一个重要问题。 A: Contamination of cabin air can be an important problem. B: Contamination of cabin air can be a considerable problem. C: Contamination of cabin air can be a fundamental problem. D: Contamination of cabin air has priority.
mercury contamination A: 水银污染 B: % C: @
mercury contamination A: 水银污染 B: % C: @
In a normally operating diesel engine， the main cause of lubricating oil contamination in the crankcase is a result of the （）.
In a normally operating diesel engine， the main cause of lubricating oil contamination in the crankcase is a result of the （）.
Which of the following would most likely lead to carbon monoxide contamination of the cockpit atmosphere?
Which of the following would most likely lead to carbon monoxide contamination of the cockpit atmosphere?
Hydraulic fluid contamination may result in hydraulic failure and thus poses a threat to flight safety.
Hydraulic fluid contamination may result in hydraulic failure and thus poses a threat to flight safety.
硅片表面常见的沾污（Contamination）主要有：颗粒、 、金属离子、 和静电释放。 A:
硅片表面常见的沾污（Contamination）主要有：颗粒、 、金属离子、 和静电释放。 A:
4. contaminate, contaminated, contamination a. This river is badly by life wastes. b. Soil occurs wherever there is a chemical factory.
4. contaminate, contaminated, contamination a. This river is badly by life wastes. b. Soil occurs wherever there is a chemical factory.
The fundamental issue in the current debate is whether environmental lead contamination (环境铅污染) causes __________ impairment (受损) in children.
The fundamental issue in the current debate is whether environmental lead contamination (环境铅污染) causes __________ impairment (受损) in children.
Which of the followingis not the main cause of water scarcity? A: war B: water contamination C: overpopulation D: climate change
Which of the followingis not the main cause of water scarcity? A: war B: water contamination C: overpopulation D: climate change
What is the main content of food analysis? A: Nutritional Ingredients B: Food Additives C: Food Contamination D: Food Sensory Evaluation
What is the main content of food analysis? A: Nutritional Ingredients B: Food Additives C: Food Contamination D: Food Sensory Evaluation