oxygen造句
61. There was a risk the brain might be starved of oxygen.
62. Plants and trees filter carbon dioxide out of the air and produce oxygen.
63. A molecule of carbon dioxide has one carbon atom and two oxygen atoms.
64. The human brain needs to be without oxygen for only four minutes before permanent damage occurs.
65. Silicon and oxygen are the fundamental constituents of rocks in the earth's crust.
66. The heat brings about a chemical reaction, and oxygen is liberated.
67. Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats.
68. The baby's brain had been deprived of oxygen during the birth.
69. A stroke can disrupt the supply of oxygen to the brain.
70. Blood is the medium in which oxygen is carried to all parts of the body.
71. A chemist can isolate the oxygen from the hydrogen in water.
72. This substance can be reduced to a single chemical and oxygen by passing an electrical charge through it.
73. Oxygen adsorbs on tungsten.
74. At high altitudes it is difficult to get enough oxygen.
75. If all the coronary arteries are free of significant obstructions, all parts of the heart will receive equal amounts of oxygen.
76. Qualitative analysis shows that water is made up of hydrogen and oxygen.
77. When an element is caused to combine with oxygen it is oxidized.
78. Water can be reduced to oxygen and hydrogen by electrolysis.
79. The climbers made their ascent of the mountain without oxygen.
80. A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
81. They placed the child in an oxygen tent when he had difficulty in breathing.
82. The shell has to be slightly porous to enable oxygen to pass in.
83. If the cabin depressurizes,[http:///oxygen.html] oxygen masks will automatically drop down.
84. A lack of oxygen may inhibit brain development in the unborn child.
85. They loaded themselves with food, medical supplies, and oxygen equipment.
86. The remaining oxygen atoms simply accumulate in the atmosphere.
87. In other words oxygen binding is reversible.
88. Oxygen was being administered through a nose cone.
89. David was starved of oxygen during birth at Peterborough Hospital in 1979 and suffered cerebral palsy.
90. Lower oxygen would be anemic, while greater oxygen would be too flammable.
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