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- Any combination of time of exposure and concentration that is less than the recommended level of 22,500 ppm x min is acceptable. Table 2 illustrates acceptable exposure times for varying concentrations of NF3 in air at the EEL of 22,500 ppm x min. 任何小于22,500 ppm x min的推荐水平的暴露时间和浓度的组合都是可以接受的。表2说明了在22,500 ppm x min的EEL下,对于空气中不同的NF3浓度可以接受的暴露时间。
- I can recommend him without qualification. 我可以毫无保留地推荐他。
- I'd like a room on the upper level. 我想要楼上的房间。
- I wouldn't recommend you to go there alone. 我劝你不要孤身一人到那里去。
- Can you recommend to me a good dictionary? 你能为我推荐一本好字典吗?
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- He gave her the job on her uncle's recommendation. 经她叔父介绍,他让她担任了这工作。
- Will you write a recommendation for me? 你替我写封推荐信好吗?
- I hope you'll be on the level with me. 我希望你对我坦率布公。
- I recommend the deal, but with certain caveats. 我介绍这笔交易,但有几项要提请注意。
- She needs to win this point to level the score. 她要赢得这一分才能将比分扳平。
- Is a sweet disposition a recommendation in a wife? 温和的性情是做妻子的可取之处吗?
- Keep a level head and phone the Fire Department. 保持冷静,打电话给消防署。
- A good face is a letter of recommendation. [谚]漂亮的面孔就是最好的介绍信。
- Excessive salt consumption can also lead to water retention, which boosts the heart rate and can increase blood pressure above recommended levels. 过量的食入盐可能导致分泌液停滞,促进心律,血压可能会增加而超过推荐的标准。
- A football field should be level. 足球场地应该平坦。
- He recommend a shop in the high street for shoes. 他推荐去大马路的一家商店买鞋。
- The rising level of crime is a sign of the times. 犯罪率增高是这一时代的特徵。
- I would recommend that you buy a DVD player instead of a VCR. 我建议你买一台DVD机而不是录像机。
- Patients need to know what the recommended levels are for these tests so they can ask for the results of the investigatio and make se e of the information they are given. 病人应知道这些化验的建议值以便索要检查结果,弄懂信息意义。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries