rat是什么意思

用法例句

Relation between acoustical absorption coefficient and loss factor in reverberant field with statistical energy analysis(SEA);

统计能量分析混响声场中吸声系数与损耗因子关系研究

Calculation of frequency and loss factor of composite sandwich structures;

复合夹层结构频率及损耗因子的计算

The effects of additional magnets on the loss factor of a smart magnetic partially constrained layers clamped-clamped beam;

附加磁体对局部约束阻尼固支梁损耗因子的影响

The results showed that the relaxtion rates of the test pieces aged at room temperature and 60 ℃ increased,but their thickness,break-down strain and tanδ changed little indicating that MVQ foam had better heat resistance;and the thickness and break-down strain of the test piece aged at 60 ℃ + loading decreased significantly,its relaxation rate in.

结果表明,经过常温贮存和60℃老化后的MVQ海绵松弛率增大,厚度、破坏应变和损耗因子(tanδ)都无明显变化,说明MVQ海绵具有较好的耐热老化性能;经过60℃加载老化后MVQ海绵明显变薄,破坏应变大幅度降低,松弛率有一定程度增大,tanδ略有减小,说明加载因素对MVQ海绵的性能有较大影响。

The results showed that the basic physical properties of test compound were similar to those of existent production compound;the rolling resistance and heat build-up of test compound decreased because of smaller tanδ at 40~100 ℃,and the ice and wet traction improved significantly because of greater tanδ at-15~+15 ℃.

结果表明,试验配方胶料的基本物理性能与生产配方相差不大;损耗因子(tanδ)在40~100℃内较小,胶料的滚动阻力和生热降低,tanδ在-15~+15℃内较大,胶料的抗冰滑和抗湿滑性能优异;试验轮胎在冰滑和湿滑路面上的抓着力较大,行驶时牵引力增大,制动距离明显缩短,同时滞后损失和生热降低,即轮胎的抗滑性能、滚动阻力和耐磨性能获得很好的平衡。

The response curves of frequency shift(Δf) and dissipation factor shift(ΔD) were gained.

肿瘤细胞与细胞外基质(ECM)的粘附特性与肿瘤的侵袭转移密切相关,利用压电石英谐振器(QCR)实时监测HepG2肝癌细胞与ECM的黏附过程,得到频率变化(Δf)和耗散因子变化(ΔD)的响应曲线。

P, the dissipation factor and the measuring current as three criteria for the measurement, and by choosing appropriate measuring voltage and etching current, the experimental results can be achieved quickly, reproducibly and reliably.

P)、耗散因子和测量电流等3个测量判据,合理选取测量电压、腐蚀电流等测量参数,获得了速度快、重复性好和数据准确可靠的测试效果。

According to the expressions of dissipation factors in terms of equivalent circuit parameters,the dissipation factors are obtained in stress experiments.

在对机敏混凝土试件进行的加载实验中,通过测量埋入的压电陶瓷元件的等效电路参数,根据耗散因子同等效电路参数间的关系,得到了压电陶瓷三种耗散因子随载荷的响应特性。

Thirdly,the loss tangent and storage modulus for fiber reinforced concretes of 6 different ratios were measured in the range of.

0Hz)条件下测定了6种不同配比复合纤维增强阻尼混凝土的损耗因子与储存模量,最后对纤维的阻尼增强机理进行了初步探讨。

Therefore,through the measurement for loss tangent or the viscous coefficient of material,the damping matrix of st.

我们可以通过实验测试材料的损耗因子或粘滞阻尼系数(材料阻尼),像结构质量矩阵、刚度矩阵一样通过比较确切的计算得到弹性阶段结构内阻尼的阻尼矩阵(结构阻尼),而且此阻尼矩阵既基于材料阻尼实验测试,又便于数学处理,且物理意义明确。

The storage modulus and loss tangent of the different cement mortars after adding the silane - treated silica fume or as-received silica fume in the cement mortar were measured by the viscoelastic analyzer VA4000 at the temperature of -30-30℃ and frequency of 0.

1～2 Hz条件下测定了在水泥砂浆中掺加硅粉和改性硅粉后水泥砂浆的储存模量和损耗因子;用X射线和扫描电镜对掺硅粉和改性硅粉的水泥砂浆试样进行了微观分析;最后对硅烷偶联剂的改性机理进行了分析。

A dog catching a mouse/poking one's nose into other people's Business

狗拿耗子,多管闲事

The rats have gnawed the boards away.

耗子把木板啃坏了。

"Like a cat at a mouse hole!"

"好像一只猫盯着耗子洞！

The rats had become bolder and bolder with each passing day

耗子一天比一天猖獗。

The cat is on the prowl for mice.

猫在四处寻找耗子。

These are the cats which caught the mice.

这些是捉到了耗子的猫。

The mouse has gnawed through the cover of the box.

耗子把这个盒子的盖咬穿了。

You mean she was crying crocodile tears?

你是说她只是猫哭耗子假慈悲？

On Sunday night he was as quiet as a mouse.

他在星期天晚上安静得像只耗子。

The girl shrieked when she saw the mouse.

那个姑娘一见耗子就吓得尖叫起来。

Very soon Puss had chased away all the rats and mice.

没过多久，普西就吓跑了所有耗子。

Taking the rat in his arms, he frightened his sister into giving him his tape.

他手里拿着耗子吓唬妹妹把磁带给他。

Nobody could, not with a mousy little person like Melanie.

同媚兰这样一个耗子似的小个儿。

Sara: I'm a pack rat, I never throw anything out.

我像个什么都留着的耗子，从不扔东西。

Why, even if a mouse makes a move our floor will report it."

吓！ 耗子走动，我这楼板也报信的。”

The mouse seemed to wink with one of its little eyes.

那支耗子好象眨巴着一只小眼睛。

Give her too much meat she won't mouse.

要是肉食喂多了，它就不逮耗子啦。

The cat shook the rat.

那只猫叼着那只耗子甩动。