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- Corylus heterophylla vegetative propagation was relatively difficult, layering method was mainly used at present, but low coefficient of propagation limited mass production of its seedlings. 摘要榛子是一种无性繁殖相对困难的树种，目前主要采用压条法进行繁殖，繁殖系数低，这限制了榛子苗的大量生产。
- The government has imposed limitation on imports. 政府已经对进口加以了限制。
- A small alteration, adjustment, or limitation. 更改小小的改变，调正或限制
- Surely there is a limit to what one can bear. 人的忍耐肯定是有限度的。
- The proposal set a time limit of one year. 提案规定了一年的限期。
- What's the speed limit on the motorway? 高速公路的速度限制是多少?
- He was had up for exceeding the speed limit. 他因超速行驶而遭控告。
- He weighed in at several pounds below the limit. 他赛前量体重比规定限度少几磅。
- The sun sometimes spoils the propagation of radio waves. 太阳有时会影响无线电波的传播。
- We must try and limit our expenditure. 我们必须设法限制我们的开支。
- His speech ran over the time limit. 他的讲话超过了规定的时间限制。
- The speed limit is 40 miles per hour. 规定的最高时速为40英里。
- Emission and propagation of energy in the form of rays or waves. 发射以光线或波的形式发出和传播能量
- There's a limit to how much I'm prepared to spend. 我准备花多少钱是有限度的。
- Limit your expenditure to what is essential. 你要把开销限制在必要的范围内。
- I must tell you that his patience has its limit. 我必须告诉你，他的耐心是有限的。
- He is fined$50 for exceeding the speed limit. 他因超速行车而被罚款50美元。
- The propagation of animals or plants. 动物的饲养，植物的培植
- The speed limit on this road is 70 mph. 这条路的车速限制是每小时70英里。
- Reproduction and spread; propagation. 复制和散布；繁殖
