However, the resistant level in a few of rice varieties increased along with the increase of plant age.
但少数品种随着苗龄的增大，其抗虫性有不同程度的提高。
The tested varieties showed different resistance degree in different replications, but had one stable resistant level relatively.
不同抗感品种在田间不同重复鉴定中均表现不同程度的抗幅波动，但都有一个相对稳定的抗性水平。
The vitalities and reproductivities of methomyl and endosulfan resistant populations decreased to some extent with the increase of resistant level.
灭多威及硫丹抗性种群随抗性水平的提高，其生命力及繁殖力表现不同程度的降低。
A ceramic armour called Dorchester Level 2, used on British Challenger 2 tanks, is reportedly at least three times as resistant to some strikes as the same weight of steel.
被称为多尔·切斯特2 (DorchesterLevel 2)的陶瓷装甲，在英国挑战者2型(British Challenger 2)坦克使用，据报道说至少可承受比相同重量钢铁能承受压力的三倍。
The PCU Level 3 half-zip pullover had thinner panels on the sides to reduce bulk, but was not wind resistant and didn't perform well as a stand-alone garment when there was wind.
PCU第3层半拉链套头衫，有很更薄的侧面以减少体积，但没有抗风，不太适合有风时单独穿着。
Supporters of low-level antibiotic use in animals say there is no solid evidence linking it to drug-resistant infections in humans.
支持在动物中使用低剂量的抗生素的人们则表示，没有明确证据表明这种做法与人类抗药性细菌感染有关。
Purpose: to study the mechanism of the Multi drug resistant cells and the relationship to the calcium cation level in cells.
目的：探讨白血病耐药细胞的发生机制与细胞内钙离子浓度的关系。
Colorimetry was used to measure the level of serum tartrate resistant acid phosphatase (TRACP).
采用比色法测定血清抗酒石酸酸性磷酸酶水平。
Objective To identify the aminoglycoside resistance gene in the high-level gentamicin resistant (HLGR) enterococcus and its transmission mechanism.
目的明确庆大霉素高水平耐药肠球菌（HLGR）新氨基糖苷类耐药基因及其传播机制。
CONCLUSION: Rational drug - use will help promote the rise of integral medical level and decrease the emergence of drug - resistant bacteria.
结论：合理应用抗菌药物有利于促进整体医疗水平的提高，减少耐药菌株的产生。
Level controllers without moveable parts are available in various versions and are extremely resistant to soiling.
没有运动部件液位控制器有各种版本，并十分耐弄脏。
However, these indexes might have to achieve a certain level (threshold) so that the single insect-resistant role in the resistance targets would be remarkable.
然而这些物质的含量要达到一定的水平(临界点)后单个抗性指标的抗虫作用才会明显。
The result showed that the level of protein phosphorylation differed between resistant and susceptible strains.
结果表明：蛋白质磷酸化在各个品系中的表现是不一样的。
Joint sealant has outstanding hydro-sealing ability. It is resistant to most chemicals at a wide range of temperature and pressures from full vacuum to medium level.
具有优异的流体密封性能，可在较宽的温度范围、压力范围和腐蚀性介质下可靠使用。
Joint sealant has outstanding hydro-sealing ability. It is resistant to most chemicals at a wide range of temperature and pressures from full vacuum to medium level.
具有优异的流体密封性能，可在较宽的温度范围、压力范围和腐蚀性介质下可靠使用。
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