diameter怎么读，diameter什么意思，diameter短语和例句

1.Atlas, the flatter of the two, has a diameter of only 18 kilometers from pole to pole but is almost 40 kilometers across its waist.

阿特拉斯是两者中较平整的一个，极点间的直径只有18公里，但它的赤道周长却有40公里。

2.The large-diameter metal pipe connects the bell nipple to the possum belly.

大口径金属管道把钟形导向短节与泥浆储罐连接起来。

3.The maximum penetration depth of gas flow is increased with the increase of gas momentum while the diameter of oxigen gunjet keeps constant.

气流的最大穿透深度随气体动量的增加而增加，而氧气喷枪的直径保持恒定。

4.The negatively charged region is large: several hundred meters thick and several kilometers in diameter.

带负电荷的区域非常大：数百米厚，直径达几千米。

5.The crown of thorns starfish is large, twenty-five to thirty-five centimeters in diameter, and has seven to twenty-one arms that are covered in spines.

棘冠海星很大，直径长达25到35厘米，有7到21条手臂，上面布满了刺。

6.On Mars, there are relatively few craters less than 5 kilometers in diameter.

在火星上，直径小于5公里的陨石坑相对较少。