小于

In addition, minimum volume of the plate recuperator can be gained by changing the gas-air plate space proportion. Under the same required recu...

在同等回热效率要求下，板翅式回热器体积远小于板式，其紧凑度更高，而阻力上升也不明显。

The percentage of patients reedy to undergo surgery in 15 min and 20 min was recorded.

记录起效时间小于15 min及20 min的例数及该时间点可以手术病人百分率。

It is pointed out that if we don′t take into account therefrangibility of the high-order excited state, the material is self-defocusing whenthe refrangibility of the ground state is larger than that of the excited state andself-focusing if it is smaller.

指出如果不考虑高阶激发态折射，基态折射度大于激发态折射度为自散焦，小于激发态折射度为自聚焦。

The designed photoelectric sensors of regular polyhedron rotation realized to adjust the

本研究对该传感器的性能进行了测试，结果表明光电式正多面体转速传感器误差小于3%，测量精度的一致性比较好，基本上达到了设计要求。

Based on the multifunctional demand for the effective heat transfer performance ata specified pumping power and structural stiffness,the thermo-mechanical performance of Kagome cells was studied in comparison with the traditional regular triangle,square and hexagon cells with low relative density.

在此基础上，针对轻质蜂窝(相对密度小于0.3)，选取蜂窝面内等效剪切刚度表征夹层结构的承载能力，综合考虑散热能力和结构承载能力，比较了Kagome蜂窝与传统的正三角形、正方形和正六边形蜂窝的性能。

The appropriate assembly temperature is related to mechanics properties of material and operating temperature, so reiterative computations are necessary to find an appropriate assembly temperature by the method that makes the maximal tensile stress smallest under conditions that the maximal compressive stress is less than the compressive yield point of material.

安装温度的选择与材料的力学性能及零件的工作温度紧密相关，因此选择合适的安装温度需要反复计算，其方法是在保证循环中的最大压缩应力小于材料压缩屈服点的条件下，使最大拉应力最小。

The transducer is tested in different temperature and pressure, the relative error is less than 1.5%.

在不同温度和压力条件下对该传感器进行了实验，相对误差小于1.5％。

The relative error between the calculating results of the computer and the values measured is less than 5%.

计算机的计算结果与实验测定值的相对误差小于5%。

Compared with the traditional method, the relative error of this software is less than 5%.

本软件设计和运行过程力求简洁、快捷，计算结果与传统方法比较相对误差小于5%，是真实可靠的。

The relative error is less than 3% for predicting future diameter growth within 4 years....

对未来20年以内的直径生长量做预报，相对误差小于5％。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。