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- useful density range [医] 有用密度范围
- Tunneling process is important in the low to moderate current density range. 在中等及中等以下电流密度下，隧道穿透过程是重要的。
- It yields a long density range, and its development latitude allows push processing with relatively low fog. 它将产生高密度变化范围，同时显影过程允许进行会造成相关联的低灰雾的迫冲。
- The results show that by using the brightener, current efficiency is improved and bright, corrosion resistant zinc deposits are obtained at a wide current density range. 结果表明：使用该光亮剂能提高镀液的电流效率，且在很宽的电流密度范围内获得光亮、耐蚀的锌镀层。
- Flash exposure: The supplementary exposure sometimes required in half-tone photography to produce the required density range . 闪光曝光:半色调摄影时，中间需要补色曝光；它造成需要的密度范围。
- The results show that glycine and formic acid both can extend the bright deposit current density range with higher throwing power for the former and higher cathodic current efficience for the latter. 以碘酸钾、三氯乙酸、甘氨酸和甲酸为添加剂,加入到标准镀铬液中,测定了镀液的分散能力、光亮电流密度范围、深镀能力、阴极电流效率。
- The boys and girls made a ring round us. 男孩和女孩围着我们站了一圈。
- Wood density ranged from a high of 0.310 in Jiangsu Province to a low of 0.273 in Guizhou Province in southwestern China. 木材密度最大值为0.;310，来自江苏省，而最小值为0
- AMF spore density ranged from 5 to 6400 per 100g soil with an average of 1504, and the species richness in each soil sample was 1~18 with an average of 9. 金沙江干热河谷土壤中丛枝菌根真菌的孢子密度为5~6400个/100g土壤,平均1504; 每个根际土壤中丛枝菌根真菌的物种丰富度1~18种,平均9种。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- Will you partake of a drink with us? 和我们一同喝一杯好吗？
- He cut off a bunch of grapes to entertain us. 他剪下一串葡萄招待我们。
- It irks us to wait for people who are late. 等候迟到的人使我们厌烦。
- She made us all laugh with her zany tricks. 她那些滑稽的恶作剧逗得我们都大笑起来。
- The bandits subject us to all sort of indignity. 强盗们对我们加以各种侮辱。
- Kindly send us two samples of each class quote for. 报价时，请对每一个等级的各寄两个样品。
- One of the fishing boats sank down astern of us. 有一艘渔船在我们后面沉没了。
- Each of the components is useful in its degree. 每一个元件都各有程度不同的用处。
- His years of study were useful in his job. 他多年的学习有助于他的工作。
- A part of this urgent task was allotted to us. 这项紧急任务的一部分分给了我们。
